CINXE.COM

<!DOCTYPE html> <html lang="en-US"> <head > <meta charset="UTF-8" /> <meta name="viewport" content="width=device-width, initial-scale=1" /> <meta name='robots' content='index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1' />  <title>Using Blockers to Unlock Secretory Proteins</title> <meta name="description" content="The challenges of studying secretory proteins in the western and immunofluorescence workflow and how blockers could be used." /> <link rel="canonical" href="https://www.thermofisher.com/blog/behindthebench/using-blockers-to-unlock-secretory-proteins/" /> <meta property="og:locale" content="en_US" /> <meta property="og:type" content="article" /> <meta property="og:title" content="Using Blockers to Unlock Secretory Proteins" /> <meta property="og:description" content="The challenges of studying secretory proteins in the western and immunofluorescence workflow and how blockers could be used." /> <meta property="og:url" content="https://www.thermofisher.com/blog/behindthebench/using-blockers-to-unlock-secretory-proteins/" /> <meta property="og:site_name" content="Behind the Bench" /> <meta property="article:publisher" content="https://www.facebook.com/thermofisher" /> <meta property="article:published_time" content="2020-05-22T14:48:11+00:00" /> <meta property="article:modified_time" content="2020-05-22T14:53:52+00:00" /> <meta property="og:image" content="https://www.thermofisher.com/blog/behindthebench/wp-content/uploads/sites/9/2020/05/Secretory-Proteins-Header-1.jpg" /> <meta property="og:image:width" content="1286" /> <meta property="og:image:height" content="726" /> <meta property="og:image:type" content="image/jpeg" /> <meta name="author" content="Behind The Bench Staff" /> <meta name="twitter:card" content="summary_large_image" /> <meta name="twitter:creator" content="@thermofisher" /> <meta name="twitter:site" content="@thermofisher" /> <meta name="twitter:label1" content="Written by" /> <meta name="twitter:data1" content="Behind The Bench Staff" /> <meta name="twitter:label2" content="Est. reading time" /> <meta name="twitter:data2" content="4 minutes" /> <script type="application/ld+json" class="yoast-schema-graph">{"@context":"https://schema.org","@graph":[{"@type":"WebPage","@id":"https://www.thermofisher.com/blog/behindthebench/using-blockers-to-unlock-secretory-proteins/","url":"https://www.thermofisher.com/blog/behindthebench/using-blockers-to-unlock-secretory-proteins/","name":"Using Blockers to Unlock Secretory Proteins","isPartOf":{"@id":"https://www.thermofisher.com/blog/behindthebench/#website"},"primaryImageOfPage":{"@id":"https://www.thermofisher.com/blog/behindthebench/using-blockers-to-unlock-secretory-proteins/#primaryimage"},"image":{"@id":"https://www.thermofisher.com/blog/behindthebench/using-blockers-to-unlock-secretory-proteins/#primaryimage"},"thumbnailUrl":"https://www.thermofisher.com/blog/behindthebench/wp-content/uploads/sites/9/2020/05/Secretory-Proteins-Header-1.jpg","datePublished":"2020-05-22T14:48:11+00:00","dateModified":"2020-05-22T14:53:52+00:00","author":{"@id":"https://www.thermofisher.com/blog/behindthebench/#/schema/person/9bbb2d67616274d3d4a21a584f7f4a0c"},"description":"The challenges of studying secretory proteins in the western and immunofluorescence workflow and how blockers could be used.","breadcrumb":{"@id":"https://www.thermofisher.com/blog/behindthebench/using-blockers-to-unlock-secretory-proteins/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https://www.thermofisher.com/blog/behindthebench/using-blockers-to-unlock-secretory-proteins/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https://www.thermofisher.com/blog/behindthebench/using-blockers-to-unlock-secretory-proteins/#primaryimage","url":"https://www.thermofisher.com/blog/behindthebench/wp-content/uploads/sites/9/2020/05/Secretory-Proteins-Header-1.jpg","contentUrl":"https://www.thermofisher.com/blog/behindthebench/wp-content/uploads/sites/9/2020/05/Secretory-Proteins-Header-1.jpg","width":1286,"height":726},{"@type":"BreadcrumbList","@id":"https://www.thermofisher.com/blog/behindthebench/using-blockers-to-unlock-secretory-proteins/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://www.thermofisher.com/blog/behindthebench/"},{"@type":"ListItem","position":2,"name":"Using Blockers to Unlock Secretory Proteins"}]},{"@type":"WebSite","@id":"https://www.thermofisher.com/blog/behindthebench/#website","url":"https://www.thermofisher.com/blog/behindthebench/","name":"Behind the Bench","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://www.thermofisher.com/blog/behindthebench/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Person","@id":"https://www.thermofisher.com/blog/behindthebench/#/schema/person/9bbb2d67616274d3d4a21a584f7f4a0c","name":"Behind The Bench Staff","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https://www.thermofisher.com/blog/behindthebench/#/schema/person/image/","url":"https://secure.gravatar.com/avatar/d6e5815e57520094d932400e2af233b9?s=96&d=mm&r=g","contentUrl":"https://secure.gravatar.com/avatar/d6e5815e57520094d932400e2af233b9?s=96&d=mm&r=g","caption":"Behind The Bench Staff"},"url":"https://www.thermofisher.com/blog/author/behind-the-bench-staff/"}]}</script>  <link rel='dns-prefetch' href='//www.thermofisher.com' /> <link rel='dns-prefetch' href='//use.fontawesome.com' /> <link rel="alternate" type="application/rss+xml" title="Behind the Bench » Feed" href="https://www.thermofisher.com/blog/behindthebench/feed/" /> <link rel="alternate" type="application/rss+xml" title="Behind the Bench » Comments Feed" href="https://www.thermofisher.com/blog/behindthebench/comments/feed/" /> <link rel="alternate" type="application/rss+xml" title="Behind the Bench » Using Blockers to Unlock Secretory Proteins Comments Feed" href="https://www.thermofisher.com/blog/behindthebench/using-blockers-to-unlock-secretory-proteins/feed/" />  <script src="https://cdn.optimizely.com/js/8156647427.js"></script>  <script> (function(h,o,t,j,a,r){ h.hj=h.hj||function(){(h.hj.q=h.hj.q||[]).push(arguments)}; h._hjSettings={hjid:373708,hjsv:5}; a=o.getElementsByTagName('head')[0]; r=o.createElement('script');r.async=1; r.src=t+h._hjSettings.hjid+j+h._hjSettings.hjsv; a.appendChild(r); })(window,document,'//static.hotjar.com/c/hotjar-','.js?sv='); </script>  <script src="//www.googletagmanager.com/gtag/js?id=G-K4QTN4KM25" data-cfasync="false" data-wpfc-render="false" type="text/javascript" async></script> <script data-cfasync="false" data-wpfc-render="false" type="text/javascript"> var mi_version = '9.2.0'; var mi_track_user = true; var mi_no_track_reason = ''; var MonsterInsightsDefaultLocations = {"page_location":"https:\/\/admin.acceleratingscience.com\/behindthebench\/using-blockers-to-unlock-secretory-proteins\/?icid=bid_pca_aup_r01_co_cp1435_pjt7191_bid99999_0so_blg_op_awa_kt_s00_immunophyto28"}; if ( typeof MonsterInsightsPrivacyGuardFilter === 'function' ) { var MonsterInsightsLocations = (typeof MonsterInsightsExcludeQuery === 'object') ? MonsterInsightsPrivacyGuardFilter( MonsterInsightsExcludeQuery ) : MonsterInsightsPrivacyGuardFilter( MonsterInsightsDefaultLocations ); } else { var MonsterInsightsLocations = (typeof MonsterInsightsExcludeQuery === 'object') ? MonsterInsightsExcludeQuery : MonsterInsightsDefaultLocations; } var disableStrs = [ 'ga-disable-G-K4QTN4KM25', ]; /* Function to detect opted out users */ function __gtagTrackerIsOptedOut() { for (var index = 0; index < disableStrs.length; index++) { if (document.cookie.indexOf(disableStrs[index] + '=true') > -1) { return true; } } return false; } /* Disable tracking if the opt-out cookie exists. */ if (__gtagTrackerIsOptedOut()) { for (var index = 0; index < disableStrs.length; index++) { window[disableStrs[index]] = true; } } /* Opt-out function */ function __gtagTrackerOptout() { for (var index = 0; index < disableStrs.length; index++) { document.cookie = disableStrs[index] + '=true; expires=Thu, 31 Dec 2099 23:59:59 UTC; path=/'; window[disableStrs[index]] = true; } } if ('undefined' === typeof gaOptout) { function gaOptout() { __gtagTrackerOptout(); } } window.dataLayer = window.dataLayer || []; window.MonsterInsightsDualTracker = { helpers: {}, trackers: {}, }; if (mi_track_user) { function __gtagDataLayer() { dataLayer.push(arguments); } function __gtagTracker(type, name, parameters) { if (!parameters) { parameters = {}; } if (parameters.send_to) { __gtagDataLayer.apply(null, arguments); return; } if (type === 'event') { parameters.send_to = monsterinsights_frontend.v4_id; var hookName = name; if (typeof parameters['event_category'] !== 'undefined') { hookName = parameters['event_category'] + ':' + name; } if (typeof MonsterInsightsDualTracker.trackers[hookName] !== 'undefined') { MonsterInsightsDualTracker.trackers[hookName](parameters); } else { __gtagDataLayer('event', name, parameters); } } else { __gtagDataLayer.apply(null, arguments); } } __gtagTracker('js', new Date()); __gtagTracker('set', { 'developer_id.dZGIzZG': true, }); if ( MonsterInsightsLocations.page_location ) { __gtagTracker('set', MonsterInsightsLocations); } __gtagTracker('config', 'G-K4QTN4KM25', {"use_amp_client_id":"true","forceSSL":"true","author":"user-120","category":"general","published_at":"2020-05-22T14:48:11+00:00","tags":"untagged"} ); window.gtag = __gtagTracker; (function () { /* https://developers.google.com/analytics/devguides/collection/analyticsjs/ */ /* ga and __gaTracker compatibility shim. */ var noopfn = function () { return null; }; var newtracker = function () { return new Tracker(); }; var Tracker = function () { return null; }; var p = Tracker.prototype; p.get = noopfn; p.set = noopfn; p.send = function () { var args = Array.prototype.slice.call(arguments); args.unshift('send'); __gaTracker.apply(null, args); }; var __gaTracker = function () { var len = arguments.length; if (len === 0) { return; } var f = arguments[len - 1]; if (typeof f !== 'object' || f === null || typeof f.hitCallback !== 'function') { if ('send' === arguments[0]) { var hitConverted, hitObject = false, action; if ('event' === arguments[1]) { if ('undefined' !== typeof arguments[3]) { hitObject = { 'eventAction': arguments[3], 'eventCategory': arguments[2], 'eventLabel': arguments[4], 'value': arguments[5] ? arguments[5] : 1, } } } if ('pageview' === arguments[1]) { if ('undefined' !== typeof arguments[2]) { hitObject = { 'eventAction': 'page_view', 'page_path': arguments[2], } } } if (typeof arguments[2] === 'object') { hitObject = arguments[2]; } if (typeof arguments[5] === 'object') { Object.assign(hitObject, arguments[5]); } if ('undefined' !== typeof arguments[1].hitType) { hitObject = arguments[1]; if ('pageview' === hitObject.hitType) { hitObject.eventAction = 'page_view'; } } if (hitObject) { action = 'timing' === arguments[1].hitType ? 'timing_complete' : hitObject.eventAction; hitConverted = mapArgs(hitObject); __gtagTracker('event', action, hitConverted); } } return; } function mapArgs(args) { var arg, hit = {}; var gaMap = { 'eventCategory': 'event_category', 'eventAction': 'event_action', 'eventLabel': 'event_label', 'eventValue': 'event_value', 'nonInteraction': 'non_interaction', 'timingCategory': 'event_category', 'timingVar': 'name', 'timingValue': 'value', 'timingLabel': 'event_label', 'page': 'page_path', 'location': 'page_location', 'title': 'page_title', 'referrer' : 'page_referrer', }; for (arg in args) { if (!(!args.hasOwnProperty(arg) || !gaMap.hasOwnProperty(arg))) { hit[gaMap[arg]] = args[arg]; } else { hit[arg] = args[arg]; } } return hit; } try { f.hitCallback(); } catch (ex) { } }; __gaTracker.create = newtracker; __gaTracker.getByName = newtracker; __gaTracker.getAll = function () { return []; }; __gaTracker.remove = noopfn; __gaTracker.loaded = true; window['__gaTracker'] = __gaTracker; })(); } else { console.log(""); (function () { function __gtagTracker() { return null; } window['__gtagTracker'] = __gtagTracker; window['gtag'] = __gtagTracker; })(); } </script>  <link rel='stylesheet' id='jetpack_related-posts-css' href='https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/jetpack/modules/related-posts/related-posts.css?ver=20240116' type='text/css' media='all' /> <link rel='stylesheet' id='accelerating-science-blogs-css' href='https://www.thermofisher.com/blog/behindthebench/wp-content/themes/accelerating-science-blogs/style.css?ver=1.2.9.3' type='text/css' media='all' /> <link rel='stylesheet' id='wp-block-library-css' href='https://www.thermofisher.com/blog//wp-includes/css/dist/block-library/style.min.css?ver=6.6.1' type='text/css' media='all' /> <link rel='stylesheet' id='mediaelement-css' href='https://www.thermofisher.com/blog//wp-includes/js/mediaelement/mediaelementplayer-legacy.min.css?ver=4.2.17' type='text/css' media='all' /> <link rel='stylesheet' id='wp-mediaelement-css' href='https://www.thermofisher.com/blog//wp-includes/js/mediaelement/wp-mediaelement.min.css?ver=6.6.1' type='text/css' media='all' /> <style id='jetpack-sharing-buttons-style-inline-css' type='text/css'> .jetpack-sharing-buttons__services-list{display:flex;flex-direction:row;flex-wrap:wrap;gap:0;list-style-type:none;margin:5px;padding:0}.jetpack-sharing-buttons__services-list.has-small-icon-size{font-size:12px}.jetpack-sharing-buttons__services-list.has-normal-icon-size{font-size:16px}.jetpack-sharing-buttons__services-list.has-large-icon-size{font-size:24px}.jetpack-sharing-buttons__services-list.has-huge-icon-size{font-size:36px}@media print{.jetpack-sharing-buttons__services-list{display:none!important}}.editor-styles-wrapper .wp-block-jetpack-sharing-buttons{gap:0;padding-inline-start:0}ul.jetpack-sharing-buttons__services-list.has-background{padding:1.25em 2.375em} </style> <style id='classic-theme-styles-inline-css' type='text/css'> /*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} </style> <style id='global-styles-inline-css' type='text/css'> :root{--wp--preset--aspect-ratio--square: 1;--wp--preset--aspect-ratio--4-3: 4/3;--wp--preset--aspect-ratio--3-4: 3/4;--wp--preset--aspect-ratio--3-2: 3/2;--wp--preset--aspect-ratio--2-3: 2/3;--wp--preset--aspect-ratio--16-9: 16/9;--wp--preset--aspect-ratio--9-16: 9/16;--wp--preset--color--black: #000000;--wp--preset--color--cyan-bluish-gray: #abb8c3;--wp--preset--color--white: #ffffff;--wp--preset--color--pale-pink: #f78da7;--wp--preset--color--vivid-red: #cf2e2e;--wp--preset--color--luminous-vivid-orange: #ff6900;--wp--preset--color--luminous-vivid-amber: #fcb900;--wp--preset--color--light-green-cyan: #7bdcb5;--wp--preset--color--vivid-green-cyan: #00d084;--wp--preset--color--pale-cyan-blue: #8ed1fc;--wp--preset--color--vivid-cyan-blue: #0693e3;--wp--preset--color--vivid-purple: #9b51e0;--wp--preset--gradient--vivid-cyan-blue-to-vivid-purple: linear-gradient(135deg,rgba(6,147,227,1) 0%,rgb(155,81,224) 100%);--wp--preset--gradient--light-green-cyan-to-vivid-green-cyan: linear-gradient(135deg,rgb(122,220,180) 0%,rgb(0,208,130) 100%);--wp--preset--gradient--luminous-vivid-amber-to-luminous-vivid-orange: linear-gradient(135deg,rgba(252,185,0,1) 0%,rgba(255,105,0,1) 100%);--wp--preset--gradient--luminous-vivid-orange-to-vivid-red: linear-gradient(135deg,rgba(255,105,0,1) 0%,rgb(207,46,46) 100%);--wp--preset--gradient--very-light-gray-to-cyan-bluish-gray: linear-gradient(135deg,rgb(238,238,238) 0%,rgb(169,184,195) 100%);--wp--preset--gradient--cool-to-warm-spectrum: linear-gradient(135deg,rgb(74,234,220) 0%,rgb(151,120,209) 20%,rgb(207,42,186) 40%,rgb(238,44,130) 60%,rgb(251,105,98) 80%,rgb(254,248,76) 100%);--wp--preset--gradient--blush-light-purple: linear-gradient(135deg,rgb(255,206,236) 0%,rgb(152,150,240) 100%);--wp--preset--gradient--blush-bordeaux: linear-gradient(135deg,rgb(254,205,165) 0%,rgb(254,45,45) 50%,rgb(107,0,62) 100%);--wp--preset--gradient--luminous-dusk: linear-gradient(135deg,rgb(255,203,112) 0%,rgb(199,81,192) 50%,rgb(65,88,208) 100%);--wp--preset--gradient--pale-ocean: linear-gradient(135deg,rgb(255,245,203) 0%,rgb(182,227,212) 50%,rgb(51,167,181) 100%);--wp--preset--gradient--electric-grass: linear-gradient(135deg,rgb(202,248,128) 0%,rgb(113,206,126) 100%);--wp--preset--gradient--midnight: linear-gradient(135deg,rgb(2,3,129) 0%,rgb(40,116,252) 100%);--wp--preset--font-size--small: 13px;--wp--preset--font-size--medium: 20px;--wp--preset--font-size--large: 36px;--wp--preset--font-size--x-large: 42px;--wp--preset--spacing--20: 0.44rem;--wp--preset--spacing--30: 0.67rem;--wp--preset--spacing--40: 1rem;--wp--preset--spacing--50: 1.5rem;--wp--preset--spacing--60: 2.25rem;--wp--preset--spacing--70: 3.38rem;--wp--preset--spacing--80: 5.06rem;--wp--preset--shadow--natural: 6px 6px 9px rgba(0, 0, 0, 0.2);--wp--preset--shadow--deep: 12px 12px 50px rgba(0, 0, 0, 0.4);--wp--preset--shadow--sharp: 6px 6px 0px rgba(0, 0, 0, 0.2);--wp--preset--shadow--outlined: 6px 6px 0px -3px rgba(255, 255, 255, 1), 6px 6px rgba(0, 0, 0, 1);--wp--preset--shadow--crisp: 6px 6px 0px rgba(0, 0, 0, 1);}:where(.is-layout-flex){gap: 0.5em;}:where(.is-layout-grid){gap: 0.5em;}body .is-layout-flex{display: flex;}.is-layout-flex{flex-wrap: wrap;align-items: center;}.is-layout-flex > :is(*, div){margin: 0;}body .is-layout-grid{display: grid;}.is-layout-grid > :is(*, div){margin: 0;}:where(.wp-block-columns.is-layout-flex){gap: 2em;}:where(.wp-block-columns.is-layout-grid){gap: 2em;}:where(.wp-block-post-template.is-layout-flex){gap: 1.25em;}:where(.wp-block-post-template.is-layout-grid){gap: 1.25em;}.has-black-color{color: var(--wp--preset--color--black) !important;}.has-cyan-bluish-gray-color{color: var(--wp--preset--color--cyan-bluish-gray) !important;}.has-white-color{color: var(--wp--preset--color--white) !important;}.has-pale-pink-color{color: var(--wp--preset--color--pale-pink) !important;}.has-vivid-red-color{color: var(--wp--preset--color--vivid-red) !important;}.has-luminous-vivid-orange-color{color: var(--wp--preset--color--luminous-vivid-orange) !important;}.has-luminous-vivid-amber-color{color: var(--wp--preset--color--luminous-vivid-amber) !important;}.has-light-green-cyan-color{color: var(--wp--preset--color--light-green-cyan) !important;}.has-vivid-green-cyan-color{color: var(--wp--preset--color--vivid-green-cyan) !important;}.has-pale-cyan-blue-color{color: var(--wp--preset--color--pale-cyan-blue) !important;}.has-vivid-cyan-blue-color{color: var(--wp--preset--color--vivid-cyan-blue) !important;}.has-vivid-purple-color{color: var(--wp--preset--color--vivid-purple) !important;}.has-black-background-color{background-color: var(--wp--preset--color--black) !important;}.has-cyan-bluish-gray-background-color{background-color: var(--wp--preset--color--cyan-bluish-gray) !important;}.has-white-background-color{background-color: var(--wp--preset--color--white) !important;}.has-pale-pink-background-color{background-color: var(--wp--preset--color--pale-pink) !important;}.has-vivid-red-background-color{background-color: var(--wp--preset--color--vivid-red) !important;}.has-luminous-vivid-orange-background-color{background-color: var(--wp--preset--color--luminous-vivid-orange) !important;}.has-luminous-vivid-amber-background-color{background-color: var(--wp--preset--color--luminous-vivid-amber) !important;}.has-light-green-cyan-background-color{background-color: var(--wp--preset--color--light-green-cyan) !important;}.has-vivid-green-cyan-background-color{background-color: var(--wp--preset--color--vivid-green-cyan) !important;}.has-pale-cyan-blue-background-color{background-color: var(--wp--preset--color--pale-cyan-blue) !important;}.has-vivid-cyan-blue-background-color{background-color: var(--wp--preset--color--vivid-cyan-blue) !important;}.has-vivid-purple-background-color{background-color: var(--wp--preset--color--vivid-purple) !important;}.has-black-border-color{border-color: var(--wp--preset--color--black) !important;}.has-cyan-bluish-gray-border-color{border-color: var(--wp--preset--color--cyan-bluish-gray) !important;}.has-white-border-color{border-color: var(--wp--preset--color--white) !important;}.has-pale-pink-border-color{border-color: var(--wp--preset--color--pale-pink) !important;}.has-vivid-red-border-color{border-color: var(--wp--preset--color--vivid-red) !important;}.has-luminous-vivid-orange-border-color{border-color: var(--wp--preset--color--luminous-vivid-orange) !important;}.has-luminous-vivid-amber-border-color{border-color: var(--wp--preset--color--luminous-vivid-amber) !important;}.has-light-green-cyan-border-color{border-color: var(--wp--preset--color--light-green-cyan) !important;}.has-vivid-green-cyan-border-color{border-color: var(--wp--preset--color--vivid-green-cyan) !important;}.has-pale-cyan-blue-border-color{border-color: var(--wp--preset--color--pale-cyan-blue) !important;}.has-vivid-cyan-blue-border-color{border-color: var(--wp--preset--color--vivid-cyan-blue) !important;}.has-vivid-purple-border-color{border-color: var(--wp--preset--color--vivid-purple) !important;}.has-vivid-cyan-blue-to-vivid-purple-gradient-background{background: var(--wp--preset--gradient--vivid-cyan-blue-to-vivid-purple) !important;}.has-light-green-cyan-to-vivid-green-cyan-gradient-background{background: var(--wp--preset--gradient--light-green-cyan-to-vivid-green-cyan) !important;}.has-luminous-vivid-amber-to-luminous-vivid-orange-gradient-background{background: var(--wp--preset--gradient--luminous-vivid-amber-to-luminous-vivid-orange) !important;}.has-luminous-vivid-orange-to-vivid-red-gradient-background{background: var(--wp--preset--gradient--luminous-vivid-orange-to-vivid-red) !important;}.has-very-light-gray-to-cyan-bluish-gray-gradient-background{background: var(--wp--preset--gradient--very-light-gray-to-cyan-bluish-gray) !important;}.has-cool-to-warm-spectrum-gradient-background{background: var(--wp--preset--gradient--cool-to-warm-spectrum) !important;}.has-blush-light-purple-gradient-background{background: var(--wp--preset--gradient--blush-light-purple) !important;}.has-blush-bordeaux-gradient-background{background: var(--wp--preset--gradient--blush-bordeaux) !important;}.has-luminous-dusk-gradient-background{background: var(--wp--preset--gradient--luminous-dusk) !important;}.has-pale-ocean-gradient-background{background: var(--wp--preset--gradient--pale-ocean) !important;}.has-electric-grass-gradient-background{background: var(--wp--preset--gradient--electric-grass) !important;}.has-midnight-gradient-background{background: var(--wp--preset--gradient--midnight) !important;}.has-small-font-size{font-size: var(--wp--preset--font-size--small) !important;}.has-medium-font-size{font-size: var(--wp--preset--font-size--medium) !important;}.has-large-font-size{font-size: var(--wp--preset--font-size--large) !important;}.has-x-large-font-size{font-size: var(--wp--preset--font-size--x-large) !important;} :where(.wp-block-post-template.is-layout-flex){gap: 1.25em;}:where(.wp-block-post-template.is-layout-grid){gap: 1.25em;} :where(.wp-block-columns.is-layout-flex){gap: 2em;}:where(.wp-block-columns.is-layout-grid){gap: 2em;} :root :where(.wp-block-pullquote){font-size: 1.5em;line-height: 1.6;} </style> <link rel='stylesheet' id='mashsb-styles-css' href='https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/mashsharer/assets/css/mashsb.min.css?ver=4.0.47' type='text/css' media='all' /> <style id='mashsb-styles-inline-css' type='text/css'> .mashsb-count {color:#555759;}[class^="mashicon-"] .text, [class*=" mashicon-"] .text{ text-indent: -9999px !important; line-height: 0px; display: block; } [class^="mashicon-"] .text:after, [class*=" mashicon-"] .text:after { content: "" !important; text-indent: 0; font-size:13px; display: block !important; } [class^="mashicon-"], [class*=" mashicon-"] { width:25%; text-align: center !important; } [class^="mashicon-"] .icon:before, [class*=" mashicon-"] .icon:before { float:none; margin-right: 0; } .mashsb-buttons a{ margin-right: 3px; margin-bottom:3px; min-width: 0; width: 41px; } .onoffswitch, .onoffswitch-inner:before, .onoffswitch-inner:after .onoffswitch2, .onoffswitch2-inner:before, .onoffswitch2-inner:after { margin-right: 0px; width: 41px; line-height: 41px; } </style> <link rel='stylesheet' id='mashnet-styles-css' href='https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/mashshare-networks/assets/css/mashnet.min.css?ver=2.5.3' type='text/css' media='all' /> <link rel='stylesheet' id='mashsas-styles-css' href='https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/mashshare-select-and-share/assets/css/mashsas.min.css?ver=1.0.5' type='text/css' media='all' /> <link rel='stylesheet' id='gforms_reset_css-css' href='https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/gravityforms/legacy/css/formreset.min.css?ver=2.8.17' type='text/css' media='all' /> <link rel='stylesheet' id='gforms_formsmain_css-css' href='https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/gravityforms/legacy/css/formsmain.min.css?ver=2.8.17' type='text/css' media='all' /> <link rel='stylesheet' id='gforms_ready_class_css-css' href='https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/gravityforms/legacy/css/readyclass.min.css?ver=2.8.17' type='text/css' media='all' /> <link rel='stylesheet' id='gforms_browsers_css-css' href='https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/gravityforms/legacy/css/browsers.min.css?ver=2.8.17' type='text/css' media='all' /> <link rel='stylesheet' id='globals-css' href='https://www.thermofisher.com/blog/behindthebench/wp-content/themes/accelerating-science-blogs/global-style.css?ver=1.2.9.3' type='text/css' media='all' /> <link rel='stylesheet' id='bfa-font-awesome-css' href='https://use.fontawesome.com/releases/v5.15.4/css/all.css?ver=2.0.3' type='text/css' media='all' /> <link rel='stylesheet' id='bfa-font-awesome-v4-shim-css' href='https://use.fontawesome.com/releases/v5.15.4/css/v4-shims.css?ver=2.0.3' type='text/css' media='all' /> <style id='bfa-font-awesome-v4-shim-inline-css' type='text/css'> @font-face { font-family: 'FontAwesome'; src: url('https://use.fontawesome.com/releases/v5.15.4/webfonts/fa-brands-400.eot'), url('https://use.fontawesome.com/releases/v5.15.4/webfonts/fa-brands-400.eot?#iefix') format('embedded-opentype'), url('https://use.fontawesome.com/releases/v5.15.4/webfonts/fa-brands-400.woff2') format('woff2'), url('https://use.fontawesome.com/releases/v5.15.4/webfonts/fa-brands-400.woff') format('woff'), url('https://use.fontawesome.com/releases/v5.15.4/webfonts/fa-brands-400.ttf') format('truetype'), url('https://use.fontawesome.com/releases/v5.15.4/webfonts/fa-brands-400.svg#fontawesome') format('svg'); } @font-face { font-family: 'FontAwesome'; src: url('https://use.fontawesome.com/releases/v5.15.4/webfonts/fa-solid-900.eot'), url('https://use.fontawesome.com/releases/v5.15.4/webfonts/fa-solid-900.eot?#iefix') format('embedded-opentype'), url('https://use.fontawesome.com/releases/v5.15.4/webfonts/fa-solid-900.woff2') format('woff2'), url('https://use.fontawesome.com/releases/v5.15.4/webfonts/fa-solid-900.woff') format('woff'), url('https://use.fontawesome.com/releases/v5.15.4/webfonts/fa-solid-900.ttf') format('truetype'), url('https://use.fontawesome.com/releases/v5.15.4/webfonts/fa-solid-900.svg#fontawesome') format('svg'); } @font-face { font-family: 'FontAwesome'; src: url('https://use.fontawesome.com/releases/v5.15.4/webfonts/fa-regular-400.eot'), url('https://use.fontawesome.com/releases/v5.15.4/webfonts/fa-regular-400.eot?#iefix') format('embedded-opentype'), url('https://use.fontawesome.com/releases/v5.15.4/webfonts/fa-regular-400.woff2') format('woff2'), url('https://use.fontawesome.com/releases/v5.15.4/webfonts/fa-regular-400.woff') format('woff'), url('https://use.fontawesome.com/releases/v5.15.4/webfonts/fa-regular-400.ttf') format('truetype'), url('https://use.fontawesome.com/releases/v5.15.4/webfonts/fa-regular-400.svg#fontawesome') format('svg'); unicode-range: U+F004-F005,U+F007,U+F017,U+F022,U+F024,U+F02E,U+F03E,U+F044,U+F057-F059,U+F06E,U+F070,U+F075,U+F07B-F07C,U+F080,U+F086,U+F089,U+F094,U+F09D,U+F0A0,U+F0A4-F0A7,U+F0C5,U+F0C7-F0C8,U+F0E0,U+F0EB,U+F0F3,U+F0F8,U+F0FE,U+F111,U+F118-F11A,U+F11C,U+F133,U+F144,U+F146,U+F14A,U+F14D-F14E,U+F150-F152,U+F15B-F15C,U+F164-F165,U+F185-F186,U+F191-F192,U+F1AD,U+F1C1-F1C9,U+F1CD,U+F1D8,U+F1E3,U+F1EA,U+F1F6,U+F1F9,U+F20A,U+F247-F249,U+F24D,U+F254-F25B,U+F25D,U+F267,U+F271-F274,U+F279,U+F28B,U+F28D,U+F2B5-F2B6,U+F2B9,U+F2BB,U+F2BD,U+F2C1-F2C2,U+F2D0,U+F2D2,U+F2DC,U+F2ED,U+F328,U+F358-F35B,U+F3A5,U+F3D1,U+F410,U+F4AD; } </style> <link rel='stylesheet' id='boxzilla-css' href='https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/boxzilla/assets/css/styles.css?ver=3.3.1' type='text/css' media='all' /> <script type="text/javascript" id="jetpack_related-posts-js-extra"> /* <![CDATA[ */ var related_posts_js_options = {"post_heading":"h4"}; /* ]]> */ </script> <script type="text/javascript" src="https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/jetpack/_inc/build/related-posts/related-posts.min.js?ver=20240116" id="jetpack_related-posts-js"></script> <script type="text/javascript" src="https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/google-analytics-premium/assets/js/frontend-gtag.min.js?ver=9.2.0" id="monsterinsights-frontend-script-js" async="async" data-wp-strategy="async"></script> <script data-cfasync="false" data-wpfc-render="false" type="text/javascript" id='monsterinsights-frontend-script-js-extra'>/* <![CDATA[ */ var monsterinsights_frontend = {"js_events_tracking":"true","download_extensions":"doc,pdf,ppt,zip,xls,docx,pptx,xlsx","inbound_paths":"[]","home_url":"https:\/\/admin.acceleratingscience.com\/behindthebench","hash_tracking":"false","v4_id":"G-K4QTN4KM25"};/* ]]> */ </script> <script type="text/javascript" src="https://www.thermofisher.com/blog//wp-includes/js/jquery/jquery.min.js?ver=3.7.1" id="jquery-core-js"></script> <script type="text/javascript" src="https://www.thermofisher.com/blog//wp-includes/js/jquery/jquery-migrate.min.js?ver=3.4.1" id="jquery-migrate-js"></script> <script type="text/javascript" id="mashsb-js-extra"> /* <![CDATA[ */ var mashsb = {"shares":"470","round_shares":"1","animate_shares":"0","dynamic_buttons":"0","share_url":"https:\/\/www.thermofisher.com\/blog\/behindthebench\/using-blockers-to-unlock-secretory-proteins\/","title":"Using+Blockers+to+Unlock+Secretory+Proteins","image":"https:\/\/admin.acceleratingscience.com\/behindthebench\/wp-content\/uploads\/sites\/9\/2020\/05\/Secretory-Proteins-Header-1.jpg","desc":"Anusha Sivakumar and Rajeev K. Pandey explain the\u00a0challenges of studying secretory proteins in the western and immunofluorescence workflow and how blockers could be used\u00a0in processing these secretory proteins.\r\n\r\nThe Secretory Pathway\r\nThe secretory pathway maintains cellular homeostasis \u2026","hashtag":"thermofisher","subscribe":"content","subscribe_url":"","activestatus":"1","singular":"1","twitter_popup":"1","refresh":"1","nonce":"01c3793ea9","postid":"13754","servertime":"1732364262","ajaxurl":"https:\/\/www.thermofisher.com\/blog\/wp-admin\/admin-ajax.php"}; /* ]]> */ </script> <script type="text/javascript" src="https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/mashsharer/assets/js/mashsb.min.js?ver=4.0.47" id="mashsb-js"></script> <script type="text/javascript" src="https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/mashshare-google-analytics/assets/js/mashga.min.js?ver=1.0.9" id="mashga-js"></script> <script type="text/javascript" id="mashnet-js-extra"> /* <![CDATA[ */ var mashnet = {"body":"Check out this article I just read:","subject":"Check out this article from Accelerating Science","pinterest_select":"1","pinterest_image":"https:\/\/admin.acceleratingscience.com\/behindthebench\/wp-content\/uploads\/sites\/9\/2020\/05\/Secretory-Proteins-Header-1.jpg","pinterest_desc":"Anusha Sivakumar and Rajeev K. Pandey explain the\u00a0challenges of studying secretory proteins in the western and immunofluorescence workflow and how blockers could be used\u00a0in processing these secretory proteins.\r\n\r\nThe Secretory Pathway\r\nThe secretory pathway maintains cellular homeostasis \u2026"}; /* ]]> */ </script> <script type="text/javascript" src="https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/mashshare-networks/assets/js/mashnet.min.js?ver=2.5.3" id="mashnet-js"></script> <script type="text/javascript" src="https://www.thermofisher.com/blog//wp-includes/js/underscore.min.js?ver=1.13.4" id="underscore-js"></script> <script type="text/javascript" src="https://www.thermofisher.com/blog//wp-includes/js/backbone.min.js?ver=1.5.0" id="backbone-js"></script> <script type="text/javascript" id="wp-api-js-js-extra"> /* <![CDATA[ */ var WP_API_Settings = {"root":"https:\/\/admin.acceleratingscience.com\/behindthebench","nonce":"ba522f8159"}; /* ]]> */ </script> <script type="text/javascript" src="https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/wp-search-live/public/assets/js/util--wp-api.js?ver=0.9" id="wp-api-js-js"></script> <script type="text/javascript" id="mashsas-js-extra"> /* <![CDATA[ */ var mashsas = {"minchars":"10","appid":"1603510369972799","facebook":"1","twitter":"1","mail":"1"}; /* ]]> */ </script> <script type="text/javascript" src="https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/mashshare-select-and-share/assets/js/mashsas.min.js?ver=1.0.5" id="mashsas-js"></script> <script type="text/javascript" defer='defer' src="https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/gravityforms/js/jquery.json.min.js?ver=2.8.17" id="gform_json-js"></script> <script type="text/javascript" id="gform_gravityforms-js-extra"> /* <![CDATA[ */ var gf_global = {"gf_currency_config":{"name":"U.S. Dollar","symbol_left":"$","symbol_right":"","symbol_padding":"","thousand_separator":",","decimal_separator":".","decimals":2,"code":"USD"},"base_url":"https:\/\/admin.acceleratingscience.com\/behindthebench\/wp-content\/plugins\/gravityforms","number_formats":[],"spinnerUrl":"https:\/\/admin.acceleratingscience.com\/behindthebench\/wp-content\/plugins\/gravityforms\/images\/spinner.svg","version_hash":"4a792b070322e711c2521ee9802c04ea","strings":{"newRowAdded":"New row added.","rowRemoved":"Row removed","formSaved":"The form has been saved. The content contains the link to return and complete the form."}}; var gf_global = {"gf_currency_config":{"name":"U.S. Dollar","symbol_left":"$","symbol_right":"","symbol_padding":"","thousand_separator":",","decimal_separator":".","decimals":2,"code":"USD"},"base_url":"https:\/\/admin.acceleratingscience.com\/behindthebench\/wp-content\/plugins\/gravityforms","number_formats":[],"spinnerUrl":"https:\/\/admin.acceleratingscience.com\/behindthebench\/wp-content\/plugins\/gravityforms\/images\/spinner.svg","version_hash":"4a792b070322e711c2521ee9802c04ea","strings":{"newRowAdded":"New row added.","rowRemoved":"Row removed","formSaved":"The form has been saved. The content contains the link to return and complete the form."}}; var gf_global = {"gf_currency_config":{"name":"U.S. Dollar","symbol_left":"$","symbol_right":"","symbol_padding":"","thousand_separator":",","decimal_separator":".","decimals":2,"code":"USD"},"base_url":"https:\/\/admin.acceleratingscience.com\/behindthebench\/wp-content\/plugins\/gravityforms","number_formats":[],"spinnerUrl":"https:\/\/admin.acceleratingscience.com\/behindthebench\/wp-content\/plugins\/gravityforms\/images\/spinner.svg","version_hash":"4a792b070322e711c2521ee9802c04ea","strings":{"newRowAdded":"New row added.","rowRemoved":"Row removed","formSaved":"The form has been saved. The content contains the link to return and complete the form."}}; var gf_global = {"gf_currency_config":{"name":"U.S. Dollar","symbol_left":"$","symbol_right":"","symbol_padding":"","thousand_separator":",","decimal_separator":".","decimals":2,"code":"USD"},"base_url":"https:\/\/admin.acceleratingscience.com\/behindthebench\/wp-content\/plugins\/gravityforms","number_formats":[],"spinnerUrl":"https:\/\/admin.acceleratingscience.com\/behindthebench\/wp-content\/plugins\/gravityforms\/images\/spinner.svg","version_hash":"4a792b070322e711c2521ee9802c04ea","strings":{"newRowAdded":"New row added.","rowRemoved":"Row removed","formSaved":"The form has been saved. The content contains the link to return and complete the form."}}; var gform_i18n = {"datepicker":{"days":{"monday":"Mo","tuesday":"Tu","wednesday":"We","thursday":"Th","friday":"Fr","saturday":"Sa","sunday":"Su"},"months":{"january":"January","february":"February","march":"March","april":"April","may":"May","june":"June","july":"July","august":"August","september":"September","october":"October","november":"November","december":"December"},"firstDay":1,"iconText":"Select date"}}; var gf_legacy_multi = {"1":"1","":"1"}; var gform_gravityforms = {"strings":{"invalid_file_extension":"This type of file is not allowed. Must be one of the following:","delete_file":"Delete this file","in_progress":"in progress","file_exceeds_limit":"File exceeds size limit","illegal_extension":"This type of file is not allowed.","max_reached":"Maximum number of files reached","unknown_error":"There was a problem while saving the file on the server","currently_uploading":"Please wait for the uploading to complete","cancel":"Cancel","cancel_upload":"Cancel this upload","cancelled":"Cancelled"},"vars":{"images_url":"https:\/\/admin.acceleratingscience.com\/behindthebench\/wp-content\/plugins\/gravityforms\/images"}}; /* ]]> */ </script> <script type="text/javascript" defer='defer' src="https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/gravityforms/js/gravityforms.min.js?ver=2.8.17" id="gform_gravityforms-js"></script> <script type="text/javascript" defer='defer' src="https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/gravityforms/js/chosen.jquery.min.js?ver=2.8.17" id="gform_chosen-js"></script> <script type="text/javascript" defer='defer' src="https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/gravityforms/assets/js/dist/utils.min.js?ver=50c7bea9c2320e16728e44ae9fde5f26" id="gform_gravityforms_utils-js"></script> <script type="text/javascript" src="https://www.thermofisher.com/blog/behindthebench/wp-content/themes/accelerating-science-blogs/js/single-scripts.js?ver=1.2.9.3" id="single-scripts-js"></script> <link rel="https://api.w.org/" href="https://www.thermofisher.com/blog/behindthebench/wp-json/" /><link rel="alternate" title="JSON" type="application/json" href="https://www.thermofisher.com/blog/behindthebench/wp-json/wp/v2/posts/13754" /><link rel="EditURI" type="application/rsd+xml" title="RSD" href="https://www.thermofisher.com/blog/xmlrpc.php?rsd" /> <link rel='shortlink' href='https://www.thermofisher.com/blog/behindthebench/?p=13754' /> <link rel="alternate" title="oEmbed (JSON)" type="application/json+oembed" href="https://www.thermofisher.com/blog/behindthebench/wp-json/oembed/1.0/embed?url=https%3A%2F%2Fwww.thermofisher.com%2Fblog%2Fbehindthebench%2Fusing-blockers-to-unlock-secretory-proteins%2F" /> <link rel="alternate" title="oEmbed (XML)" type="text/xml+oembed" href="https://www.thermofisher.com/blog/behindthebench/wp-json/oembed/1.0/embed?url=https%3A%2F%2Fwww.thermofisher.com%2Fblog%2Fbehindthebench%2Fusing-blockers-to-unlock-secretory-proteins%2F&format=xml" /> <meta property="fb:pages" content="258357757657262" /> <meta property="ia:markup_url" content="https://www.thermofisher.com/blog/behindthebench/using-blockers-to-unlock-secretory-proteins/?ia_markup=1" />  <link rel="icon" href="https://www.thermofisher.com/blog/behindthebench/wp-content/themes/accelerating-science-blogs/images/favicon.ico" />  <script async src="https://www.googletagmanager.com/gtag/js?id=UA-34877942-1"></script> <script> window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date()); gtag('config', 'UA-34877942-1'); </script>  <script> !function(f,b,e,v,n,t,s){if(f.fbq)return;n=f.fbq=function(){n.callMethod? n.callMethod.apply(n,arguments):n.queue.push(arguments)};if(!f._fbq)f._fbq=n; n.push=n;n.loaded=!0;n.version='2.0';n.queue=[];t=b.createElement(e);t.async=!0; t.src=v;s=b.getElementsByTagName(e)[0];s.parentNode.insertBefore(t,s)}(window, document,'script','https://connect.facebook.net/en_US/fbevents.js'); fbq('init', '305572349637096'); fbq('track', "PageView");</script> <noscript><img height="1" width="1" style="display:none" src="https://www.facebook.com/tr?id=305572349637096&ev=PageView&noscript=1" /></noscript>   <script async src="https://www.googletagmanager.com/gtag/js?id=AW-1013120100"></script> <script> window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date()); gtag('config', 'AW-1013120100'); </script>  <script> gtag('event', 'conversion', {'send_to': 'AW-1013120100/_RFLCLT6yqsBEOT4i-MD'}); </script> <script type="application/ld+json"> {"@context":"http:\/\/schema.org","@type":"BlogPosting","mainEntityofPage":{"@type":"WebPage","@id":"https:\/\/www.thermofisher.com\/blog\/behindthebench\/using-blockers-to-unlock-secretory-proteins\/"},"headline":"Using Blockers to Unlock Secretory Proteins","datePublished":"05\/22\/2020","dateModified":"05\/22\/2020","publisher":{"@type":"Organization","name":"Thermo Fisher Scientific","URL":"https:\/\/www.thermofisher.com\/us\/en\/home.html","logo":{"@type":"ImageObject","url":"https:\/\/www.thermofisher.com\/content\/dam\/LifeTech\/Images\/Header\/logo-color.png"}},"image":{"@type":"ImageObject","url":"https:\/\/admin.acceleratingscience.com\/behindthebench\/wp-content\/uploads\/sites\/9\/2020\/05\/Secretory-Proteins-Header-1.jpg","width":1286,"height":726},"author":{"@type":"Person","name":"Behind The Bench Staff"}} </script> <script type="text/javascript" src="https://www.thermofisher.com/etc/designs/lifetech/clientlibs/digitaldata.js" defer="defer"></script> <script id="tagmanager" type="text/javascript" src='https://assets.adobedtm.com/launch-ENeecb77f1160a4928a492ff040f7110c7.min.js' defer="defer"></script> <script> (function($) { $(document).ready(function() { digitalData.setPageType('blog'); }) })(jQuery); </script> <style type="text/css" id="wp-custom-css"> /* Welcome to Custom CSS! To learn how this works, see http://wp.me/PEmnE-Bt */blockquote { width: 450px; color:#FFF; background: #7d7e7d; /* Old browsers */ background: -moz-linear-gradient(top, #7d7e7d 0%, #0e0e0e 100%); /* FF3.6+ */ background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#7d7e7d), color-stop(100%,#0e0e0e)); /* Chrome,Safari4+ */ background: -webkit-linear-gradient(top, #7d7e7d 0%,#0e0e0e 100%); /* Chrome10+,Safari5.1+ */ background: -o-linear-gradient(top, #7d7e7d 0%,#0e0e0e 100%); /* Opera 11.10+ */ background: -ms-linear-gradient(top, #7d7e7d 0%,#0e0e0e 100%); /* IE10+ */ background: linear-gradient(to bottom, #7d7e7d 0%,#0e0e0e 100%); /* W3C */ filter: progid:DXImageTransform.Microsoft.gradient( startColorstr=’#7d7e7d’, endColorstr=’#0e0e0e’,GradientType=0 ); /* IE6-9 */ border: 1px solid #ccc; border-radius: 6px; box-shadow: 1px 1px 1px #ccc; font-style: italic; } </style> </head> <body class="post-template-default single single-post postid-13754 single-format-standard header-image full-width-content genesis-breadcrumbs-visible"><div class="site-container"><header class="site-header"><div class="wrap"><div class="title-area"><p class="site-title"><a href="https://www.thermofisher.com/" title="Thermo Fisher Scientific">Thermo Fisher Scientific</a></p></div><div class="widget-area header-widget-area"><section id="nav_menu-2" class="widget widget_nav_menu"><div class="widget-wrap"><nav class="nav-header"><ul id="menu-main-menu" class="menu genesis-nav-menu"><li id="menu-item-15" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-has-children menu-item-15"><a><span >Categories</span></a> <ul class="sub-menu"> <li id="menu-item-22" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-22"><a href="https://www.thermofisher.com/blog/materials/"><span >Advancing Materials</span></a></li> <li id="menu-item-21" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-21"><a href="https://www.thermofisher.com/blog/mining/"><span >Advancing Mining</span></a></li> <li id="menu-item-17937" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-17937"><a href="https://www.thermofisher.com/blog/analyteguru/"><span >AnalyteGuru</span></a></li> <li id="menu-item-20" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-20"><a href="https://www.thermofisher.com/blog/metals/"><span >Analyzing Metals</span></a></li> <li id="menu-item-12913" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-12913"><a href="https://www.thermofisher.com/blog/ask-a-scientist/"><span >Ask a Scientist</span></a></li> <li id="menu-item-16" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-16"><a href="https://www.thermofisher.com/blog/behindthebench/"><span >Behind the Bench</span></a></li> <li id="menu-item-17769" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-17769"><a href="https://www.thermofisher.com/blog/biotechnology/"><span >Biotech at Scale</span></a></li> <li id="menu-item-16657" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-16657"><a href="https://www.thermofisher.com/blog/clinical-conversations/"><span >Clinical Conversations</span></a></li> <li id="menu-item-19" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-19"><a href="https://www.thermofisher.com/blog/food/"><span >Examining Food</span></a></li> <li id="menu-item-10924" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-10924"><a href="https://www.thermofisher.com/blog/identifying-threats/"><span >Identifying Threats</span></a></li> <li id="menu-item-16704" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-16704"><a href="https://www.thermofisher.com/blog/semiconductors/"><span >Illuminating Semiconductors</span></a></li> <li id="menu-item-16705" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-16705"><a href="https://www.thermofisher.com/blog/atomic-resolution/"><span >Life in Atomic Resolution</span></a></li> <li id="menu-item-10922" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-10922"><a href="https://www.thermofisher.com/blog/life-in-the-lab/"><span >Life in the Lab</span></a></li> <li id="menu-item-16658" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-16658"><a href="https://www.thermofisher.com/blog/oempowered/"><span >OEMpowered</span></a></li> <li id="menu-item-12812" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-12812"><a href="https://www.thermofisher.com/blog/connectedlab/"><span >The Connected Lab</span></a></li> </ul> </li> <li id="menu-item-24" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-24"><a href="https://www.thermofisher.com/blog/about-us/"><span >About Us</span></a></li> <li id="menu-item-25" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-25"><a href="https://www.thermofisher.com/blog/contact-us/?site=behindthebench"><span >Contact</span></a></li> </ul></nav></div></section> </div><div class="breadcrumb"><span class="breadcrumb-link-wrap"><a href="https://www.thermofisher.com/blog/?">Accelerating Science</a></span><span class="breadcrumb-link-wrap"><a class="breadcrumb-link" href="https://www.thermofisher.com/blog/behindthebench/"><span class="breadcrumb-link-text-wrap">Behind the Bench</span></a><meta ></span> <span aria-label="breadcrumb separator">/</span> <span class="breadcrumb-link-wrap"><a class="breadcrumb-link" href="https://www.thermofisher.com/blog/behindthebench/general/"><span class="breadcrumb-link-text-wrap">General</span></a><meta ></span> <span aria-label="breadcrumb separator">/</span> <span class="breadcrumb-current-title">Using Blockers to Unlock Secretory Proteins</span></div></div></header><div class="site-inner"><div class="content-sidebar-wrap"><main class="content"><article class="post-13754 post type-post status-publish format-standard has-post-thumbnail category-general entry" aria-label="Using Blockers to Unlock Secretory Proteins"><header class="entry-header"><h1 class="entry-title">Using Blockers to Unlock Secretory Proteins</h1> <span class="post-info-author"> By <a href="https://www.thermofisher.com/blog/author/behind-the-bench-staff/" title="Posts by Behind The Bench Staff" rel="author">Behind The Bench Staff</a> </span> <span class="post-info-date"> 05.22.2020 </span> </header><div class="entry-content"><p style="line-height: 1.4"><em>Anusha Sivakumar and Rajeev K. Pandey explain the challenges of studying secretory proteins in the western and immunofluorescence workflow and how blockers could be used in processing these secretory proteins.</em></p> <h2>The Secretory Pathway</h2> <p style="line-height: 1.4">The secretory pathway maintains cellular homeostasis and communication by ferrying soluble proteins to the plasma membrane and extracellular medium. These proteins are processed in the rough endoplasmic reticulum (rER) and are trafficked into the <em>cis</em>-golgi network. These <em>cis-</em> stacks (nearest to the ER) physically change position to <em>trans-</em>golgi reticulum (farthest from the ER), enabling the migration of the luminal protein cargo into destined vesicles for secretion. <a href="https://www.thermofisher.com/antibody/primary/target/tgn46?icid=BID_PCA_CON_Abs_BTB_20200522_TGN46">TGN46</a>, <a href="https://www.thermofisher.com/antibody/primary/target/golgin-97?icid=BID_PCA_CON_Abs_BTB_20200522_Golgin-97">Golgin-97</a>, <a href="https://www.thermofisher.com/antibody/primary/target/lman1?icid=BID_PCA_CON_Abs_BTB_20200522_LMAN1">LMAN1</a>, <a href="https://www.thermofisher.com/antibody/primary/target/grasp65?icid=BID_PCA_CON_Abs_BTB_20200522_Grasp65">Grasp65</a> and <a href="https://www.thermofisher.com/antibody/primary/target/arf1?icid=BID_PCA_CON_Abs_BTB_20200522_ARF1">ARF1</a> are some proteins that aid in processing the secretory proteins and act as potential markers for different stages of cargo movement within the cell.</p> <h2>Unlocking Secretory Proteins</h2> <p style="line-height: 1.4">The challenge in studying secretory proteins in the western and immunofluorescence workflow is capturing these proteins within the cell and mapping their secretory pathway from their synthesis in ribosomes to the release. Brefeldin A (BFA), Monensin (MON), Bafilomycin A1 (Baf A1), and FLI-06 (1,4,5,6,7,8-Hexahydro-2,7,7-trimethyl-4-(4-nitrophenyl)-5-oxo-3-quinolinecarboxylic acid cyclohexyl ester) are some agents that cause intracellular accumulation of unprocessed secretory proteins. Where MON acts as an ionophore for Na+/H+ exchanger in golgi, BFA blocks proteins that activate ARF1 required for dissociation of golgi-derived vesicles. We show here the potential of BFA and MON, alone or in combination, for intracellular enrichment of secretory proteins like Transferrin, Transferrin Receptor, Matrix Metalloproteinase-1 and Tissue Inhibitor of Matrix Metalloproteinase-1 and detection with specific antibodies.</p> <p style="line-height: 1.4">Transferrin (Tf) and transferrin receptor (TfR) interactions are evolutionarily conserved components of the iron homeostasis machinery and is one of the most well-studied shuttling models in cell biology. Tf bound with ferric irons are endocytosed into the cell along with TfR for intracellular iron release and gets trafficked back into the circulation by vesicles from the plasma membrane (Figure.1A). <a href="https://www.thermofisher.com/order/catalog/product/00-4506-51?SID=srch-hj-00-4506-51#/00-4506-51?icid=BID_PCA_CON_Abs_BTB_20200522_BFA">BFA</a> (Product # 00-4506-51) helps in accumulating TfR in the golgi (Figure.1B), thereby, making it possible to understand the molecular basis for several iron-deficiency diseases.</p> <p style="font-size: 8pt;line-height: 1.4"><span style="font-size: 8pt"><strong>Figure 1 A)</strong> Western blot analysis demonstrates PTI-mediated enrichment of Transferrin in Hep G2 cells using <a href="https://www.thermofisher.com/antibody/product/Transferrin-Antibody-Polyclonal/PA3-913?icid=BID_PCA_CON_Abs_BTB_20200522_PA3-913">Transferrin Polyclonal Antibody</a> (Product # PA3-913). Antibody specificity was demonstrated by <a href="https://www.thermofisher.com/us/en/home/life-science/antibodies/invitrogen-antibody-validation/relative-expression-antibody-validation.html?icid=BID_PCA_CON_Abs_BTB_20200522_RelativeExpression">relative expression</a> of Transferrin observed in Hep G2 (liver cells) in comparison to K-562 (bone marrow derived lymphoblasts). Chemiluminescent detection was performed using <a href="https://www.thermofisher.com/order/catalog/product/32209?SID=srch-srp-32209#/32209?icid=BID_PCA_CON_Abs_BTB_20200522_32209">Pierce ECL Western Blotting Substrate</a> (Product # 32209) and <a href="https://www.thermofisher.com/us/en/home/life-science/protein-biology/protein-assays-analysis/western-blotting/detect-proteins-western-blot/western-blot-imaging-analysis/ibright-western-blot-imaging-systems.html?icid=BID_PCA_CON_Abs_BTB_20200522_iBright">iBright FL1000 Imaging System</a>. <strong>B)</strong> Immunofluorescence using <a href="https://www.thermofisher.com/antibody/product/Transferrin-Receptor-Antibody-clone-10F11-Monoclonal/MA5-11441?icid=BID_PCA_CON_Abs_BTB_20200522_MA5-11441">Transferrin Receptor monoclonal antibody</a> (Product # MA5-11441). Detection of undispersed Transferrin Receptor upon the disruption of Golgi structure in HeLa cells with BFA demonstrated antibody specificity.</span><img decoding="async" src="https://www.thermofisher.com/blog/behindthebench/wp-content/uploads/sites/9/2020/05/secretory-proteins-9.jpg" width="942" height="483" /></p> <h2>Protein Transport Inhibitor</h2> <p style="line-height: 1.4">BFA and MON as a cocktail in <a href="https://www.thermofisher.com/order/catalog/product/00-4980-93#/00-4980-93?icid=BID_PCA_CON_Abs_BTB_20200522_PTI">Protein Transport Inhibitor (PTI)</a> (Product # 00-4980-93) aids in internalizing extracellular matrix protein and improved the detection of MMP1 and TIMP1 in western and immunofluorescence applications. MMP1 (Collagenase-1), a prototype secretory enzyme of all the interstitial collagenases, and its inhibitor, TIMP1 are often expressed in equilibrium to maintain the degradation and synthesis dynamics of collagen fibers in the ECM. Dysregulation in this balance is reported to have resulted in invasion, vascularization and angiogenesis in several cancers, cardiovascular disorders and inflammation. PTI allows for relative enrichment of MMP-1 in endothelial cells like HUVEC (Figure 2A, 2B) and TIMP1 in invasive breast cancer line, MDA-MB-231 (Figure 2C, 2D), in comparison to other cell lineages.</p> <p style="font-size: 8pt;line-height: 1.4"><span style="font-size: 8pt"><strong>Figure 2. A)</strong> Western blot analysis and immunofluorescence assay. Chemiluminescent detection was performed using <a href="https://www.thermofisher.com/order/catalog/product/WP20005#/WP20005?icid=BID_PCA_CON_Abs_BTB_20200522_WP20005">Novex® ECL Chemiluminescent Substrate Reagent Kit</a> (Product # WP20005). <strong>B)</strong> shows PTI mediated enrichment of MMP1 in HUVEC cells using <a href="https://www.thermofisher.com/antibody/product/MMP1-Antibody-Polyclonal/PA5-27210?icid=BID_PCA_CON_Abs_BTB_20200522_PA5-27210">MMP1 Polyclonal Antibody</a> (Product # PA5-27210). Antibody specificity was demonstrated by <a href="https://www.thermofisher.com/us/en/home/life-science/antibodies/invitrogen-antibody-validation/relative-expression-antibody-validation.html">relative expression</a> of MMP1 observed in HUVEC (endothelial cells) in comparison to A549 (epithelial cells). <strong>C)</strong> and immunofluorescence assay shows PTI mediated enrichment of TIMP1 in MDA-MB-231 using <a href="https://www.thermofisher.com/antibody/product/TIMP1-Antibody-clone-102D1-Monoclonal/MA5-13688?icid=BID_PCA_CON_Abs_BTB_20200522_MA5-13688">TIMP1 Monoclonal Antibody</a> (Product # MA5-13688). Chemiluminescent detection was performed using <a href="https://www.thermofisher.com/order/catalog/product/WP20005#/WP20005?icid=BID_PCA_CON_Abs_BTB_20200522_WP20005">Novex® ECL Chemiluminescent Substrate Reagent Kit</a> (Product # WP20005).</span><img decoding="async" src="https://www.thermofisher.com/blog/behindthebench/wp-content/uploads/sites/9/2020/05/immunofluorescence-assay-9.jpg" width="945" height="438" /><img loading="lazy" decoding="async" src="https://www.thermofisher.com/blog/behindthebench/wp-content/uploads/sites/9/2020/05/relative-expression-9.jpg" width="944" height="527" /></p> <p style="line-height: 1.4">Several cytokines, ECM and serum transport proteins are not extensively studied because of lack of appropriate agents to trap them at specific sites in the secretory transport pathway. Blockers like PTI could aid in elucidating the mode and need for secretion in disease pathogenesis and pave the way for identifying therapeutic drug targets for cancers and other diseases.</p> <p style="line-height: 1.4"><strong>Additional Antibody Blogs<br /> </strong><a href="https://www.thermofisher.com/blog/behindthebench/lets-get-specific-about-the-tnfr-pathway/?icid=BID_PCA_CON_Abs_BTB_20200522_TNFR">Let’s get ‘specific’ about the TNFR pathway!<br /> </a><a href="https://www.thermofisher.com/blog/behindthebench/diy-neurons-for-antibody-validation/?icid=BID_PCA_CON_Abs_BTB_20200522_DIY">DIY Neurons for antibody validation<br /> </a><a href="https://www.thermofisher.com/blog/behindthebench/translate-to-invitrogen-antibodies-for-your-ribosomal-protein-research/?icid=BID_PCA_CON_Abs_BTB_20200522_Translate">Translate to Invitrogen antibodies for your ribosomal protein research!<br /> </a><a href="https://www.thermofisher.com/blog/behindthebench/drivers-of-the-chromosomal-passenger-complex/?icid=BID_PCA_CON_Abs_BTB_20200522_Drivers">Drivers of the Chromosomal Passenger Complex<br /> </a><a href="https://www.thermofisher.com/blog/behindthebench/prmts-role-in-epigenetic-regulation/?icid=BID_PCA_CON_Abs_BTB_20200522_PRMTs">PRMTs: Role in epigenetic regulation</a></p> <p> </p> <p style="font-size: 8pt;line-height: 1.4"><strong>References</strong><br /> <strong>1. </strong>Brefeldin A: The advantage of being uncompetitive. Chardin, P & McCormick, F. doi: 10.1016/S0092-8674(00)80724-2.<br /> <strong>2.</strong> Dissection of the golgi complex: Monensin inhibits the transport of viral membrane proteins from medial to trans golgi cisternae in baby hamster kidney cells infected with Semliki Forest virus. Griffiths, G. et.al. doi: 10.1083/jcb.96.3.835.<br /> <strong>3.</strong> Inhibition of cargo export at ER exit sites and the trans-golgi network by the secretion inhibitor FLI-06. Yonemura, Y. et.al. doi: 10.1242/jcs.186163.<br /> <strong>4.</strong> Endocytosed transferrin receptors recycle via distinct dynamin and phosphatidylinositol-3-kinase dependent pathways. Van Dam, EM. et.al. doi: 10.1074/jbc.M206271200<br /> <strong>5.</strong> Matrix metalloproteinase-1-mediated up-regulation of vascular endothelial growth factor-2 in endothelial cells. Mazor, R. et.al. doi: 10.1074/jbc.M112.417451.</p> <p><em>For Research Use Only. Not for use in diagnostic procedures.</em></p> <aside class="mashsb-container mashsb-main "><div class="mashsb_above_buttons">Share this article </div><div class="mashsb-box"><div class="mashsb-count mash-large" style="float:left"><div class="counts mashsbcount">470</div><span class="mashsb-sharetext">SHARES</span></div><div class="mashsb-buttons"><a class="mashicon-facebook mash-large mashsb-noshadow" href="https://www.facebook.com/sharer.php?u=https%3A%2F%2Fwww.thermofisher.com%2Fblog%2Fbehindthebench%2Fusing-blockers-to-unlock-secretory-proteins%2F" target="_top" rel="nofollow"><span class="icon"></span><span class="text">Facebook</span></a><a class="mashicon-linkedin mash-large mashsb-noshadow" href="https://www.linkedin.com/shareArticle?trk=Using+Blockers+to+Unlock+Secretory+Proteins&url=https%3A%2F%2Fwww.thermofisher.com%2Fblog%2Fbehindthebench%2Fusing-blockers-to-unlock-secretory-proteins%2F" target="_top" rel="nofollow"><span class="icon"></span><span class="text">Linkedin</span></a><a class="mashicon-twitter mash-large mashsb-noshadow" href="https://twitter.com/intent/tweet?text=Using%20Blockers%20to%20Unlock%20Secretory%20Proteins&url=https://www.thermofisher.com/blog/behindthebench/?p=13754&via=thermofisher" target="_top" rel="nofollow"><span class="icon"></span><span class="text">Twitter</span></a><a class="mashicon-mail mash-large mashsb-noshadow" href="mailto:?subject=Check%20out%20this%20article%20from%20Accelerating%20Science&body=Check%20out%20this%20article%20I%20just%20read%3Ahttps%3A%2F%2Fwww.thermofisher.com%2Fblog%2Fbehindthebench%2Fusing-blockers-to-unlock-secretory-proteins%2F" target="_top" rel="nofollow"><span class="icon"></span><span class="text">Mail</span></a><div class="onoffswitch2 mash-large mashsb-noshadow" style="display:none"></div></div> </div> <div style="clear:both"></div><div class="mashsb-toggle-container"></div></aside> </div></article><div class="entry-comments" id="comments"><h3>Comments</h3><ol class="comment-list"> <li class="comment even thread-even depth-1" id="comment-9167"> <article id="article-comment-9167"> <header class="comment-header"> <p class="comment-author"> <img alt='' src='httpss://secure.gravatar.com/avatar/10506f0a2e639fb2ab3447562b87b9c7?s=48&d=mm&r=g' srcset='httpss://secure.gravatar.com/avatar/10506f0a2e639fb2ab3447562b87b9c7?s=96&d=mm&r=g 2x' class='avatar avatar-48 photo' height='48' width='48' loading='lazy' decoding='async'/><span class="comment-author-name">Dr Shashank Pathak</span> <span class="says">says</span> </p> <p class="comment-meta"><time class="comment-time"><a class="comment-time-link" href="https://www.thermofisher.com/blog/behindthebench/using-blockers-to-unlock-secretory-proteins/#comment-9167">August 23, 2020 at 2:30 am</a></time></p> </header> <div class="comment-content"> <p>V excellent paper on protein trafficking</p> </div> <div class="comment-reply"><a rel='nofollow' class='comment-reply-link' href='#comment-9167' data-commentid="9167" data-postid="13754" data-belowelement="article-comment-9167" data-respondelement="respond" data-replyto="Reply to Dr Shashank Pathak" aria-label='Reply to Dr Shashank Pathak'>Reply</a></div> </article> </li> </ol></div> <div id="respond" class="comment-respond"> <h3 id="reply-title" class="comment-reply-title">Leave a Reply <small><a rel="nofollow" id="cancel-comment-reply-link" href="/behindthebench/using-blockers-to-unlock-secretory-proteins/?icid=bid_pca_aup_r01_co_cp1435_pjt7191_bid99999_0so_blg_op_awa_kt_s00_immunophyto28#respond" style="display:none;">Cancel reply</a></small></h3><form action="https://www.thermofisher.com/blog/behindthebench/wp-comments-post.php" method="post" id="commentform" class="comment-form" novalidate><p class="comment-notes"><span id="email-notes">Your email address will not be published.</span> <span class="required-field-message">Required fields are marked <span class="required">*</span></span></p><p class="comment-form-comment"><label for="comment">Comment <span class="required">*</span></label> <textarea id="comment" name="comment" cols="45" rows="8" maxlength="65525" required></textarea></p><p class="comment-form-author"><label for="author">Name <span class="required">*</span></label> <input id="author" name="author" type="text" value="" size="30" maxlength="245" autocomplete="name" required /></p> <p class="comment-form-email"><label for="email">Email <span class="required">*</span></label> <input id="email" name="email" type="email" value="" size="30" maxlength="100" aria-describedby="email-notes" autocomplete="email" required /></p> <p class="comment-form-url"><label for="url">Website</label> <input id="url" name="url" type="url" value="" size="30" maxlength="200" autocomplete="url" /></p> <p class="form-submit"><input name="submit" type="submit" id="submit" class="submit" value="Post Comment" /> <input type='hidden' name='comment_post_ID' value='13754' id='comment_post_ID' /> <input type='hidden' name='comment_parent' id='comment_parent' value='0' /> </p><p style="display: none;"><input type="hidden" id="akismet_comment_nonce" name="akismet_comment_nonce" value="b7ff18b1ae" /></p><p style="display: none !important;" class="akismet-fields-container" data-prefix="ak_"><label>Δ<textarea name="ak_hp_textarea" cols="45" rows="8" maxlength="100"></textarea></label><input type="hidden" id="ak_js_2" name="ak_js" value="233"/><script>document.getElementById( "ak_js_2" ).setAttribute( "value", ( new Date() ).getTime() );</script></p></form> </div> <div class="adjacent-entry-pagination pagination"><div class="pagination-previous alignleft"><i class="fa fa-icon fa-chevron-left"></i> <a href="https://www.thermofisher.com/blog/behindthebench/global-tracking-of-sars-cov-2-using-targeted-next-generation-sequencing-ngs/" rel="prev">Global Tracking of SARS-CoV-2 Using Targeted Next-Generation Sequencing (NGS)</a></div><div class="pagination-next alignright"><a href="https://www.thermofisher.com/blog/behindthebench/studying-sars-cov-2-infections-in-domestic-animals/" rel="next">Studying SARS-CoV-2 Infections in Domestic Animals</a> <i class="fa fa-icon fa-chevron-right"></i></div></div></main></div></div><footer class="site-footer"><div class="wrap"><div class="creds"><p class="footer-links"><a href="https://corporate.thermofisher.com/en/footer/privacy-statement.html" target="_blank" rel="noopener noreferrer">Privacy Statement</a><a href="https://corporate.thermofisher.com/en/footer/terms-and-conditions.html" target="_blank" rel="noopener noreferrer">Terms & Conditions</a><a href="/blog/locations/">Locations</a><a href="/blog/sitemap/">Sitemap</a></p><p>© 2024 <a href="https://www.thermofisher.com">Thermo Fisher Scientific</a>. All Rights Reserved.</p></div><span class="social-links"><p>Talk to us</p><a href="https://www.facebook.com/thermofisher" class="facebook" target="_blank" rel="noopener noreferrer"><i class="fa fa-icon fa-facebook"></i></a><a href="https://www.linkedin.com/company/thermo-fisher-scientific" class="linkedin" target="_blank" rel="noopener noreferrer"><i class="fa fa-icon fa-linkedin"></i></a><a href="https://twitter.com/thermofisher" class="twitter" target="_blank" rel="noopener noreferrer"><i class="fa fa-icon fa-twitter"></i></a><a href="https://www.youtube.com/c/thermofisher" class="youtube" target="_blank" rel="noopener noreferrer"><i class="fa fa-icon fa-youtube"></i></a></span></div></footer></div><div style="display: none;"><div id="boxzilla-box-10626-content"><p><h4>Get news and research reviews on the topic of your choice, right in your inbox.</h4> </p> <p><a id="subscribe" class="button" href="#">Subscribe Now</a></p> <div id="subscribe-form"> <div class='gf_browser_ie gf_browser_ie7 gform_wrapper gform_legacy_markup_wrapper gform-theme--no-framework' data-form-theme='legacy' data-form-index='1' id='gform_wrapper_1' ><form method='post' enctype='multipart/form-data' id='gform_1' action='/blog/behindthebench/using-blockers-to-unlock-secretory-proteins/' formid='1'> <div class='gform-body gform_body'><ul id='gform_fields_1' class='gform_fields top_label form_sublabel_above description_below validation_below'><li id="field_1_4" class="gfield gfield--type-text first-name field_sublabel_above gfield--no-description field_description_below field_validation_below gfield_visibility_visible" data-js-reload="field_1_4" ><label class='gfield_label gform-field-label screen-reader-text' for='input_1_4'>First Name</label><div class='ginput_container ginput_container_text'><input name='input_4' id='input_1_4' type='text' value='' class='large' placeholder='First Name' aria-invalid="false" /> </div></li><li id="field_1_5" class="gfield gfield--type-text last-name field_sublabel_above gfield--no-description field_description_below field_validation_below gfield_visibility_visible" data-js-reload="field_1_5" ><label class='gfield_label gform-field-label screen-reader-text' for='input_1_5'>Last Name</label><div class='ginput_container ginput_container_text'><input name='input_5' id='input_1_5' type='text' value='' class='large' placeholder='Last Name' aria-invalid="false" /> </div></li><li id="field_1_2" class="gfield gfield--type-email email gfield_contains_required field_sublabel_above gfield--no-description field_description_below field_validation_below gfield_visibility_visible" data-js-reload="field_1_2" ><label class='gfield_label gform-field-label screen-reader-text' for='input_1_2'>Email<span class="gfield_required"><span class="gfield_required gfield_required_asterisk">*</span></span></label><div class='ginput_container ginput_container_email'> <input name='input_2' id='input_1_2' type='email' value='' class='large' placeholder='Email' aria-required="true" aria-invalid="false" /> </div></li><li id="field_1_6" class="gfield gfield--type-text company field_sublabel_above gfield--no-description field_description_below field_validation_below gfield_visibility_visible" data-js-reload="field_1_6" ><label class='gfield_label gform-field-label screen-reader-text' for='input_1_6'>Company</label><div class='ginput_container ginput_container_text'><input name='input_6' id='input_1_6' type='text' value='' class='large' placeholder='Company' aria-invalid="false" /> </div></li><li id="field_1_7" class="gfield gfield--type-select country gfield_contains_required field_sublabel_above gfield--no-description field_description_below field_validation_below gfield_visibility_visible" data-js-reload="field_1_7" ><label class='gfield_label gform-field-label screen-reader-text' for='input_1_7'>Select your country/region<span class="gfield_required"><span class="gfield_required gfield_required_asterisk">*</span></span></label><div class='ginput_container ginput_container_select'><select name='input_7' id='input_1_7' class='large gfield_select' aria-required="true" aria-invalid="false" ><option value='' selected='selected' class='gf_placeholder'>Select your country/region</option><option value='United States' >United States</option><option value='Canada' >Canada</option><option value='Afghanistan' >Afghanistan</option><option value='Albania' >Albania</option><option value='Algeria' >Algeria</option><option value='American Samoa' >American Samoa</option><option value='Andorra' >Andorra</option><option value='Angola' >Angola</option><option value='Anguilla' >Anguilla</option><option value='Antarctica' >Antarctica</option><option value='Antigua and Barbuda' >Antigua and Barbuda</option><option value='Argentina' >Argentina</option><option value='Armenia' >Armenia</option><option value='Aruba' >Aruba</option><option value='Australia' >Australia</option><option value='Austria' >Austria</option><option value='Azerbaijan' >Azerbaijan</option><option value='Bahamas' >Bahamas</option><option value='Bahrain' >Bahrain</option><option value='Bangladesh' >Bangladesh</option><option value='Barbados' >Barbados</option><option value='Belarus' >Belarus</option><option value='Belgium' >Belgium</option><option value='Belize' >Belize</option><option value='Benin' >Benin</option><option value='Bermuda' >Bermuda</option><option value='Bhutan' >Bhutan</option><option value='Bolivia' >Bolivia</option><option value='Bosnia and Herzegovina' >Bosnia and Herzegovina</option><option value='Botswana' >Botswana</option><option value='Bouvet Island' >Bouvet Island</option><option value='Brazil' >Brazil</option><option value='British Indian Ocean Territory' >British Indian Ocean Territory</option><option value='Brunei Darussalam' >Brunei Darussalam</option><option value='Bulgaria' >Bulgaria</option><option value='Burkina Faso' >Burkina Faso</option><option value='Burundi' >Burundi</option><option value='Cambodia' >Cambodia</option><option value='Cameroon' >Cameroon</option><option value='Cape Verde' >Cape Verde</option><option value='Cayman Islands' >Cayman Islands</option><option value='Central African Republic' >Central African Republic</option><option value='Chad' >Chad</option><option value='Chile' >Chile</option><option value='China' >China</option><option value='Christmas Island' >Christmas Island</option><option value='Cocos (Keeling) Islands' >Cocos (Keeling) Islands</option><option value='Colombia' >Colombia</option><option value='Comoros' >Comoros</option><option value='Congo' >Congo</option><option value='Congo, The Democratic Republic of' >Congo, The Democratic Republic of</option><option value='Cook Islands' >Cook Islands</option><option value='Costa Rica' >Costa Rica</option><option value='Cote D'Ivoire' >Cote D'Ivoire</option><option value='Croatia' >Croatia</option><option value='Cuba' >Cuba</option><option value='Cyprus' >Cyprus</option><option value='Czech Republic' >Czech Republic</option><option value='Denmark' >Denmark</option><option value='Djibouti' >Djibouti</option><option value='Dominica' >Dominica</option><option value='Dominican Republic' >Dominican Republic</option><option value='East Timor' >East Timor</option><option value='Ecuador' >Ecuador</option><option value='Egypt' >Egypt</option><option value='El Salvador' >El Salvador</option><option value='Equatorial Guinea' >Equatorial Guinea</option><option value='Eritrea' >Eritrea</option><option value='Estonia' >Estonia</option><option value='Ethiopia' >Ethiopia</option><option value='Falkland Islands (Malvinas)' >Falkland Islands (Malvinas)</option><option value='Faroe Islands' >Faroe Islands</option><option value='Fiji' >Fiji</option><option value='Finland' >Finland</option><option value='Fmr Yugoslav Rep of Macedonia' >Fmr Yugoslav Rep of Macedonia</option><option value='France' >France</option><option value='French Guiana' >French Guiana</option><option value='French Polynesia' >French Polynesia</option><option value='French Southern Territories' >French Southern Territories</option><option value='Gabon' >Gabon</option><option value='Gambia' >Gambia</option><option value='Georgia' >Georgia</option><option value='Germany' >Germany</option><option value='Ghana' >Ghana</option><option value='Gibraltar' >Gibraltar</option><option value='Greece' >Greece</option><option value='Greenland' >Greenland</option><option value='Grenada' >Grenada</option><option value='Guadeloupe' >Guadeloupe</option><option value='Guam' >Guam</option><option value='Guatemala' >Guatemala</option><option value='Guinea' >Guinea</option><option value='Guinea-Bissau' >Guinea-Bissau</option><option value='Guyana' >Guyana</option><option value='Haiti' >Haiti</option><option value='Heard and McDonald Islands' >Heard and McDonald Islands</option><option value='Holy See (Vatican City State)' >Holy See (Vatican City State)</option><option value='Honduras' >Honduras</option><option value='Hong Kong' >Hong Kong</option><option value='Hungary' >Hungary</option><option value='Iceland' >Iceland</option><option value='India' >India</option><option value='Indonesia' >Indonesia</option><option value='Iran (Islamic Republic Of)' >Iran (Islamic Republic Of)</option><option value='Iraq' >Iraq</option><option value='Ireland' >Ireland</option><option value='Israel' >Israel</option><option value='Italy' >Italy</option><option value='Jamaica' >Jamaica</option><option value='Japan' >Japan</option><option value='Jordan' >Jordan</option><option value='Kazakstan' >Kazakstan</option><option value='Kenya' >Kenya</option><option value='Kiribati' >Kiribati</option><option value='Korea, Democratic People's Rep' >Korea, Democratic People's Rep</option><option value='Korea, Republic of' >Korea, Republic of</option><option value='Kuwait' >Kuwait</option><option value='Kyrgyzstan' >Kyrgyzstan</option><option value='Lao People's Democratic Rep' >Lao People's Democratic Rep</option><option value='Latvia' >Latvia</option><option value='Lebanon' >Lebanon</option><option value='Lesotho' >Lesotho</option><option value='Liberia' >Liberia</option><option value='Libyan Arab Jamahiriya' >Libyan Arab Jamahiriya</option><option value='Liechtenstein' >Liechtenstein</option><option value='Lithuania' >Lithuania</option><option value='Luxembourg' >Luxembourg</option><option value='Macau' >Macau</option><option value='Madagascar' >Madagascar</option><option value='Malawi' >Malawi</option><option value='Malaysia' >Malaysia</option><option value='Maldives' >Maldives</option><option value='Mali' >Mali</option><option value='Malta' >Malta</option><option value='Marshall Islands' >Marshall Islands</option><option value='Martinique' >Martinique</option><option value='Mauritania' >Mauritania</option><option value='Mauritius' >Mauritius</option><option value='Mayotte' >Mayotte</option><option value='Mexico' >Mexico</option><option value='Micronesia, Federated States' >Micronesia, Federated States</option><option value='Moldova, Republic of' >Moldova, Republic of</option><option value='Monaco' >Monaco</option><option value='Mongolia' >Mongolia</option><option value='Montserrat' >Montserrat</option><option value='Morocco' >Morocco</option><option value='Mozambique' >Mozambique</option><option value='Myanmar' >Myanmar</option><option value='Namibia' >Namibia</option><option value='Nauru' >Nauru</option><option value='Nepal' >Nepal</option><option value='Netherlands' >Netherlands</option><option value='Netherlands Antilles' >Netherlands Antilles</option><option value='New Caledonia' >New Caledonia</option><option value='New Zealand' >New Zealand</option><option value='Nicaragua' >Nicaragua</option><option value='Niger' >Niger</option><option value='Nigeria' >Nigeria</option><option value='Niue' >Niue</option><option value='Norfolk Island' >Norfolk Island</option><option value='Northern Mariana Islands' >Northern Mariana Islands</option><option value='Norway' >Norway</option><option value='Oman' >Oman</option><option value='Pakistan' >Pakistan</option><option value='Palau' >Palau</option><option value='Panama' >Panama</option><option value='Papua New Guinea' >Papua New Guinea</option><option value='Paraguay' >Paraguay</option><option value='Peru' >Peru</option><option value='Philippines' >Philippines</option><option value='Pitcairn' >Pitcairn</option><option value='Poland' >Poland</option><option value='Portugal' >Portugal</option><option value='Puerto Rico' >Puerto Rico</option><option value='Qatar' >Qatar</option><option value='Reunion' >Reunion</option><option value='Romania' >Romania</option><option value='Russian Federation' >Russian Federation</option><option value='Rwanda' >Rwanda</option><option value='Saint Helena' >Saint Helena</option><option value='Saint Kitts and Nevis' >Saint Kitts and Nevis</option><option value='Saint Lucia' >Saint Lucia</option><option value='Saint Pierre and Miquelon' >Saint Pierre and Miquelon</option><option value='Samoa' >Samoa</option><option value='San Marino' >San Marino</option><option value='Sao Tome and Principe' >Sao Tome and Principe</option><option value='Saudi Arabia' >Saudi Arabia</option><option value='Senegal' >Senegal</option><option value='Seychelles' >Seychelles</option><option value='Sierra Leone' >Sierra Leone</option><option value='Singapore' >Singapore</option><option value='Slovakia' >Slovakia</option><option value='Slovenia' >Slovenia</option><option value='Solomon Islands' >Solomon Islands</option><option value='Somalia' >Somalia</option><option value='South Africa' >South Africa</option><option value='Spain' >Spain</option><option value='Sri Lanka' >Sri Lanka</option><option value='Sth Georgia & Sth Sandwich Is' >Sth Georgia & Sth Sandwich Is</option><option value='St Vincent and the Grenadines' >St Vincent and the Grenadines</option><option value='Sudan' >Sudan</option><option value='Suriname' >Suriname</option><option value='Svalbard and Jan Mayen' >Svalbard and Jan Mayen</option><option value='Swaziland' >Swaziland</option><option value='Sweden' >Sweden</option><option value='Switzerland' >Switzerland</option><option value='Syrian Arab Republic' >Syrian Arab Republic</option><option value='Taiwan, Province of China' >Taiwan, Province of China</option><option value='Tajikistan' >Tajikistan</option><option value='Tanzania, United Republic of' >Tanzania, United Republic of</option><option value='Thailand' >Thailand</option><option value='Togo' >Togo</option><option value='Tokelau' >Tokelau</option><option value='Tonga' >Tonga</option><option value='Trinidad and Tobago' >Trinidad and Tobago</option><option value='Tunisia' >Tunisia</option><option value='Turkey' >Turkey</option><option value='Turkmenistan' >Turkmenistan</option><option value='Turks and Caicos Islands' >Turks and Caicos Islands</option><option value='Tuvalu' >Tuvalu</option><option value='Uganda' >Uganda</option><option value='Ukraine' >Ukraine</option><option value='United Arab Emirates' >United Arab Emirates</option><option value='United Kingdom' >United Kingdom</option><option value='Uruguay' >Uruguay</option><option value='US Minor Outlying Islands' >US Minor Outlying Islands</option><option value='Uzbekistan' >Uzbekistan</option><option value='Vanuatu' >Vanuatu</option><option value='Venezuela' >Venezuela</option><option value='Vietnam' >Vietnam</option><option value='Virgin Islands (British)' >Virgin Islands (British)</option><option value='Virgin Islands (U.S.)' >Virgin Islands (U.S.)</option><option value='Wallis and Futuna Islands' >Wallis and Futuna Islands</option><option value='Western Sahara' >Western Sahara</option><option value='Yemen' >Yemen</option><option value='Yugoslavia' >Yugoslavia</option><option value='Zambia' >Zambia</option><option value='Zimbabwe' >Zimbabwe</option></select></div></li><li id="field_1_8" class="gfield gfield--type-select sub-category gfield_contains_required field_sublabel_above gfield--no-description field_description_below field_validation_below gfield_visibility_visible" data-js-reload="field_1_8" ><label class='gfield_label gform-field-label screen-reader-text' for='input_1_8'>Pick a category<span class="gfield_required"><span class="gfield_required gfield_required_asterisk">*</span></span></label><div class='ginput_container ginput_container_select'><select name='input_8' id='input_1_8' class='large gfield_select' aria-required="true" aria-invalid="false" ><option value='' selected='selected' class='gf_placeholder'>Pick a category</option><option value='Accelerating Microscopy' >Accelerating Microscopy</option><option value='Advancing Materials' >Advancing Materials</option><option value='Advancing Mining' >Advancing Mining</option><option value='Analyzing Metals' >Analyzing Metals</option><option value='Behind the Bench' selected='selected'>Behind the Bench</option><option value='Examining Food' >Examining Food</option><option value='Identifying Threats' >Identifying Threats</option><option value='Life in the Lab' >Life in the Lab</option></select></div></li><li id="field_1_9" class="gfield gfield--type-checkbox gfield--type-choice gfield_contains_required field_sublabel_above gfield--no-description field_description_below field_validation_below gfield_visibility_visible" data-js-reload="field_1_9" ><label class='gfield_label gform-field-label screen-reader-text gfield_label_before_complex' ><span class="gfield_required"><span class="gfield_required gfield_required_asterisk">*</span></span></label><div class='ginput_container ginput_container_checkbox'><ul class='gfield_checkbox' id='input_1_9'><li class='gchoice gchoice_1_9_1'> <input class='gfield-choice-input' name='input_9.1' type='checkbox' value='1' id='choice_1_9_1' /> <label for='choice_1_9_1' id='label_1_9_1' class='gform-field-label gform-field-label--type-inline'>I would like to receive information about content, events, products, services and promotions from Thermo Fisher Scientific and its affiliates. I agree for the Thermo Fisher Scientific group (thermofisher.com/legalentities) to contact me by email and/or telephone to inform me of events, products, services and/or promotions offered in connection with the brands Thermo Scientific™, Applied Biosystems™, Invitrogen™, Gibco™, Ion Torrent ™, Unity Lab Services™, Fisher Scientifc™. I can withdraw my consent and unsubscribe at any time by emailing reply@thermofisher.com By submitting my data, I give consent to the collection, processing and use of my personal data in accordance with the Thermo Fisher Scientific Policy (thermofisher.com/privacypolicy).</label> </li></ul></div></li><li id="field_1_10" class="gfield gfield--type-hidden gform_hidden field_sublabel_above gfield--no-description field_description_below field_validation_below gfield_visibility_visible" data-js-reload="field_1_10" ><div class='ginput_container ginput_container_text'><input name='input_10' id='input_1_10' type='hidden' class='gform_hidden' aria-invalid="false" value='Behind the Bench' /></div></li><li id="field_1_11" class="gfield gfield--type-honeypot gform_validation_container field_sublabel_above gfield--has-description field_description_below field_validation_below gfield_visibility_visible" data-js-reload="field_1_11" ><label class='gfield_label gform-field-label' for='input_1_11'>Phone</label><div class='ginput_container'><input name='input_11' id='input_1_11' type='text' value='' autocomplete='new-password'/></div><div class='gfield_description' id='gfield_description_1_11'>This field is for validation purposes and should be left unchanged.</div></li></ul></div> <div class='gform_footer top_label'> <input type='submit' id='gform_submit_button_1' class='gform_button button' value='Subscribe' onclick='if(window["gf_submitting_1"]){return false;} if( !jQuery("#gform_1")[0].checkValidity || jQuery("#gform_1")[0].checkValidity()){window["gf_submitting_1"]=true;} ' onkeypress='if( event.keyCode == 13 ){ if(window["gf_submitting_1"]){return false;} if( !jQuery("#gform_1")[0].checkValidity || jQuery("#gform_1")[0].checkValidity()){window["gf_submitting_1"]=true;} jQuery("#gform_1").trigger("submit",[true]); }' /> <input type='hidden' class='gform_hidden' name='is_submit_1' value='1' /> <input type='hidden' class='gform_hidden' name='gform_submit' value='1' /> <input type='hidden' class='gform_hidden' name='gform_unique_id' value='' /> <input type='hidden' class='gform_hidden' name='state_1' value='WyJbXSIsImFiYmI5YzY2YWJjNDlmYzYwZjUzMTBiZjQ0NGIwZGNmIl0=' /> <input type='hidden' class='gform_hidden' name='gform_target_page_number_1' id='gform_target_page_number_1' value='0' /> <input type='hidden' class='gform_hidden' name='gform_source_page_number_1' id='gform_source_page_number_1' value='1' /> <input type='hidden' name='gform_field_values' value='' /> </div> <p style="display: none !important;" class="akismet-fields-container" data-prefix="ak_"><label>Δ<textarea name="ak_hp_textarea" cols="45" rows="8" maxlength="100"></textarea></label><input type="hidden" id="ak_js_3" name="ak_js" value="233"/><script>document.getElementById( "ak_js_3" ).setAttribute( "value", ( new Date() ).getTime() );</script></p></form> </div><script type="text/javascript"> /* <![CDATA[ */ gform.initializeOnLoaded( function() {gformInitSpinner( 1, 'https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/gravityforms/images/spinner.svg', true );jQuery('#gform_ajax_frame_1').on('load',function(){var contents = jQuery(this).contents().find('*').html();var is_postback = contents.indexOf('GF_AJAX_POSTBACK') >= 0;if(!is_postback){return;}var form_content = jQuery(this).contents().find('#gform_wrapper_1');var is_confirmation = jQuery(this).contents().find('#gform_confirmation_wrapper_1').length > 0;var is_redirect = contents.indexOf('gformRedirect(){') >= 0;var is_form = form_content.length > 0 && ! is_redirect && ! is_confirmation;var mt = parseInt(jQuery('html').css('margin-top'), 10) + parseInt(jQuery('body').css('margin-top'), 10) + 100;if(is_form){jQuery('#gform_wrapper_1').html(form_content.html());if(form_content.hasClass('gform_validation_error')){jQuery('#gform_wrapper_1').addClass('gform_validation_error');} else {jQuery('#gform_wrapper_1').removeClass('gform_validation_error');}setTimeout( function() { /* delay the scroll by 50 milliseconds to fix a bug in chrome */ }, 50 );if(window['gformInitDatepicker']) {gformInitDatepicker();}if(window['gformInitPriceFields']) {gformInitPriceFields();}var current_page = jQuery('#gform_source_page_number_1').val();gformInitSpinner( 1, 'https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/gravityforms/images/spinner.svg', true );jQuery(document).trigger('gform_page_loaded', [1, current_page]);window['gf_submitting_1'] = false;}else if(!is_redirect){var confirmation_content = jQuery(this).contents().find('.GF_AJAX_POSTBACK').html();if(!confirmation_content){confirmation_content = contents;}jQuery('#gform_wrapper_1').replaceWith(confirmation_content);jQuery(document).trigger('gform_confirmation_loaded', [1]);window['gf_submitting_1'] = false;wp.a11y.speak(jQuery('#gform_confirmation_message_1').text());}else{jQuery('#gform_1').append(contents);if(window['gformRedirect']) {gformRedirect();}}jQuery(document).trigger("gform_pre_post_render", [{ formId: "1", currentPage: "current_page", abort: function() { this.preventDefault(); } }]); if (event && event.defaultPrevented) { return; } const gformWrapperDiv = document.getElementById( "gform_wrapper_1" ); if ( gformWrapperDiv ) { const visibilitySpan = document.createElement( "span" ); visibilitySpan.id = "gform_visibility_test_1"; gformWrapperDiv.insertAdjacentElement( "afterend", visibilitySpan ); } const visibilityTestDiv = document.getElementById( "gform_visibility_test_1" ); let postRenderFired = false; function triggerPostRender() { if ( postRenderFired ) { return; } postRenderFired = true; jQuery( document ).trigger( 'gform_post_render', [1, current_page] ); gform.utils.trigger( { event: 'gform/postRender', native: false, data: { formId: 1, currentPage: current_page } } ); if ( visibilityTestDiv ) { visibilityTestDiv.parentNode.removeChild( visibilityTestDiv ); } } function debounce( func, wait, immediate ) { var timeout; return function() { var context = this, args = arguments; var later = function() { timeout = null; if ( !immediate ) func.apply( context, args ); }; var callNow = immediate && !timeout; clearTimeout( timeout ); timeout = setTimeout( later, wait ); if ( callNow ) func.apply( context, args ); }; } const debouncedTriggerPostRender = debounce( function() { triggerPostRender(); }, 200 ); if ( visibilityTestDiv && visibilityTestDiv.offsetParent === null ) { const observer = new MutationObserver( ( mutations ) => { mutations.forEach( ( mutation ) => { if ( mutation.type === 'attributes' && visibilityTestDiv.offsetParent !== null ) { debouncedTriggerPostRender(); observer.disconnect(); } }); }); observer.observe( document.body, { attributes: true, childList: false, subtree: true, attributeFilter: [ 'style', 'class' ], }); } else { triggerPostRender(); } } );} ); /* ]]> */ </script> </div> </div></div><script>if(window.location.search.indexOf('post_id')!=-1){ window.close();}jQuery(document).ready(function ($) { $('p').mashSelectionSharer();});</script>  <script type="text/html" id="wpls--tmpl"> <li class="search-result"> <a href="<%= post.link %>"> <div class="wpls--item-title-wrap"> <h4 class="wpls--item-title"><%= post.title %></h4> </div> </a> </li> </script> <script type="text/javascript"> /* MonsterInsights Scroll Tracking */ if ( typeof(jQuery) !== 'undefined' ) { jQuery( document ).ready(function(){ function monsterinsights_scroll_tracking_load() { if ( ( typeof(__gaTracker) !== 'undefined' && __gaTracker && __gaTracker.hasOwnProperty( "loaded" ) && __gaTracker.loaded == true ) || ( typeof(__gtagTracker) !== 'undefined' && __gtagTracker ) ) { (function(factory) { factory(jQuery); }(function($) { /* Scroll Depth */ "use strict"; var defaults = { percentage: true }; var $window = $(window), cache = [], scrollEventBound = false, lastPixelDepth = 0; /* * Plugin */ $.scrollDepth = function(options) { var startTime = +new Date(); options = $.extend({}, defaults, options); /* * Functions */ function sendEvent(action, label, scrollDistance, timing) { if ( 'undefined' === typeof MonsterInsightsObject || 'undefined' === typeof MonsterInsightsObject.sendEvent ) { return; } var paramName = action.toLowerCase(); var fieldsArray = { send_to: 'G-K4QTN4KM25', non_interaction: true }; fieldsArray[paramName] = label; if (arguments.length > 3) { fieldsArray.scroll_timing = timing MonsterInsightsObject.sendEvent('event', 'scroll_depth', fieldsArray); } else { MonsterInsightsObject.sendEvent('event', 'scroll_depth', fieldsArray); } } function calculateMarks(docHeight) { return { '25%' : parseInt(docHeight * 0.25, 10), '50%' : parseInt(docHeight * 0.50, 10), '75%' : parseInt(docHeight * 0.75, 10), /* Cushion to trigger 100% event in iOS */ '100%': docHeight - 5 }; } function checkMarks(marks, scrollDistance, timing) { /* Check each active mark */ $.each(marks, function(key, val) { if ( $.inArray(key, cache) === -1 && scrollDistance >= val ) { sendEvent('Percentage', key, scrollDistance, timing); cache.push(key); } }); } function rounded(scrollDistance) { /* Returns String */ return (Math.floor(scrollDistance/250) * 250).toString(); } function init() { bindScrollDepth(); } /* * Public Methods */ /* Reset Scroll Depth with the originally initialized options */ $.scrollDepth.reset = function() { cache = []; lastPixelDepth = 0; $window.off('scroll.scrollDepth'); bindScrollDepth(); }; /* Add DOM elements to be tracked */ $.scrollDepth.addElements = function(elems) { if (typeof elems == "undefined" || !$.isArray(elems)) { return; } $.merge(options.elements, elems); /* If scroll event has been unbound from window, rebind */ if (!scrollEventBound) { bindScrollDepth(); } }; /* Remove DOM elements currently tracked */ $.scrollDepth.removeElements = function(elems) { if (typeof elems == "undefined" || !$.isArray(elems)) { return; } $.each(elems, function(index, elem) { var inElementsArray = $.inArray(elem, options.elements); var inCacheArray = $.inArray(elem, cache); if (inElementsArray != -1) { options.elements.splice(inElementsArray, 1); } if (inCacheArray != -1) { cache.splice(inCacheArray, 1); } }); }; /* * Throttle function borrowed from: * Underscore.js 1.5.2 * http://underscorejs.org * (c) 2009-2013 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors * Underscore may be freely distributed under the MIT license. */ function throttle(func, wait) { var context, args, result; var timeout = null; var previous = 0; var later = function() { previous = new Date; timeout = null; result = func.apply(context, args); }; return function() { var now = new Date; if (!previous) previous = now; var remaining = wait - (now - previous); context = this; args = arguments; if (remaining <= 0) { clearTimeout(timeout); timeout = null; previous = now; result = func.apply(context, args); } else if (!timeout) { timeout = setTimeout(later, remaining); } return result; }; } /* * Scroll Event */ function bindScrollDepth() { scrollEventBound = true; $window.on('scroll.scrollDepth', throttle(function() { /* * We calculate document and window height on each scroll event to * account for dynamic DOM changes. */ var docHeight = $(document).height(), winHeight = window.innerHeight ? window.innerHeight : $window.height(), scrollDistance = $window.scrollTop() + winHeight, /* Recalculate percentage marks */ marks = calculateMarks(docHeight), /* Timing */ timing = +new Date - startTime; checkMarks(marks, scrollDistance, timing); }, 500)); } init(); }; /* UMD export */ return $.scrollDepth; })); jQuery.scrollDepth(); } else { setTimeout(monsterinsights_scroll_tracking_load, 200); } } monsterinsights_scroll_tracking_load(); }); } /* End MonsterInsights Scroll Tracking */ </script><script type="text/javascript" id="wpls-script-js-extra"> /* <![CDATA[ */ var wp_search_vars = {"helperText":"one more character","api":"https:\/\/admin.acceleratingscience.com\/wp-json\/as\/v1\/all-posts\/9"}; /* ]]> */ </script> <script type="text/javascript" src="https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/wp-search-live/public/assets/js/wp-live-search.js?ver=0.9" id="wpls-script-js"></script> <script type="text/javascript" src="https://www.thermofisher.com/blog//wp-includes/js/comment-reply.min.js?ver=6.6.1" id="comment-reply-js" async="async" data-wp-strategy="async"></script> <script type="text/javascript" src="https://www.thermofisher.com/blog//wp-includes/js/dist/dom-ready.min.js?ver=f77871ff7694fffea381" id="wp-dom-ready-js"></script> <script type="text/javascript" src="https://www.thermofisher.com/blog//wp-includes/js/dist/hooks.min.js?ver=2810c76e705dd1a53b18" id="wp-hooks-js"></script> <script type="text/javascript" src="https://www.thermofisher.com/blog//wp-includes/js/dist/i18n.min.js?ver=5e580eb46a90c2b997e6" id="wp-i18n-js"></script> <script type="text/javascript" id="wp-i18n-js-after"> /* <![CDATA[ */ wp.i18n.setLocaleData( { 'text direction\u0004ltr': [ 'ltr' ] } ); /* ]]> */ </script> <script type="text/javascript" src="https://www.thermofisher.com/blog//wp-includes/js/dist/a11y.min.js?ver=d90eebea464f6c09bfd5" id="wp-a11y-js"></script> <script type="text/javascript" defer='defer' src="https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/gravityforms/js/placeholders.jquery.min.js?ver=2.8.17" id="gform_placeholder-js"></script> <script type="text/javascript" defer='defer' src="https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/gravityforms/assets/js/dist/vendor-theme.min.js?ver=54e7080aa7a02c83aa61fae430b9d869" id="gform_gravityforms_theme_vendors-js"></script> <script type="text/javascript" id="gform_gravityforms_theme-js-extra"> /* <![CDATA[ */ var gform_theme_config = {"common":{"form":{"honeypot":{"version_hash":"4a792b070322e711c2521ee9802c04ea"}}},"hmr_dev":"","public_path":"https:\/\/admin.acceleratingscience.com\/behindthebench\/wp-content\/plugins\/gravityforms\/assets\/js\/dist\/"}; /* ]]> */ </script> <script type="text/javascript" defer='defer' src="https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/gravityforms/assets/js/dist/scripts-theme.min.js?ver=bab19fd84843dabc070e73326d787910" id="gform_gravityforms_theme-js"></script> <script type="text/javascript" src="https://www.thermofisher.com/blog//wp-includes/js/jquery/ui/core.min.js?ver=1.13.3" id="jquery-ui-core-js"></script> <script type="text/javascript" src="https://www.thermofisher.com/blog//wp-includes/js/jquery/ui/tabs.min.js?ver=1.13.3" id="jquery-ui-tabs-js"></script> <script type="text/javascript" src="https://www.thermofisher.com/blog/behindthebench/wp-content/themes/accelerating-science-blogs/js/scripts.js?ver=1.2.9.3" id="scripts-js"></script> <script type="text/javascript" id="boxzilla-js-extra"> /* <![CDATA[ */ var boxzilla_options = {"testMode":"","boxes":[{"id":10626,"icon":"×","content":"","css":{"position":"bottom-right"},"trigger":{"method":"percentage","value":35},"animation":"fade","cookie":{"triggered":0,"dismissed":0},"rehide":false,"position":"bottom-right","screenWidthCondition":null,"closable":true,"post":{"id":10626,"title":"Single Call to Action","slug":"single-call-to-action"}}]}; /* ]]> */ </script> <script type="text/javascript" src="https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/boxzilla/assets/js/script.js?ver=3.3.1" id="boxzilla-js"></script> <script defer type="text/javascript" src="https://www.thermofisher.com/blog/behindthebench/wp-content/plugins/akismet/_inc/akismet-frontend.js?ver=1722950842" id="akismet-frontend-js"></script> <script type="text/javascript"> /* <![CDATA[ */ gform.initializeOnLoaded( function() { jQuery(document).on('gform_post_render', function(event, formId, currentPage){if(formId == 1) {gformInitChosenFields('#input_1_7,#input_1_8','No results matched');if(typeof Placeholders != 'undefined'){ Placeholders.enable(); }} } );jQuery(document).on('gform_post_conditional_logic', function(event, formId, fields, isInit){gformInitChosenFields('#input_1_7,#input_1_8','No results matched');} ) } ); /* ]]> */ </script> <script type="text/javascript"> /* <![CDATA[ */ gform.initializeOnLoaded( function() {jQuery(document).trigger("gform_pre_post_render", [{ formId: "1", currentPage: "1", abort: function() { this.preventDefault(); } }]); if (event && event.defaultPrevented) { return; } const gformWrapperDiv = document.getElementById( "gform_wrapper_1" ); if ( gformWrapperDiv ) { const visibilitySpan = document.createElement( "span" ); visibilitySpan.id = "gform_visibility_test_1"; gformWrapperDiv.insertAdjacentElement( "afterend", visibilitySpan ); } const visibilityTestDiv = document.getElementById( "gform_visibility_test_1" ); let postRenderFired = false; function triggerPostRender() { if ( postRenderFired ) { return; } postRenderFired = true; jQuery( document ).trigger( 'gform_post_render', [1, 1] ); gform.utils.trigger( { event: 'gform/postRender', native: false, data: { formId: 1, currentPage: 1 } } ); if ( visibilityTestDiv ) { visibilityTestDiv.parentNode.removeChild( visibilityTestDiv ); } } function debounce( func, wait, immediate ) { var timeout; return function() { var context = this, args = arguments; var later = function() { timeout = null; if ( !immediate ) func.apply( context, args ); }; var callNow = immediate && !timeout; clearTimeout( timeout ); timeout = setTimeout( later, wait ); if ( callNow ) func.apply( context, args ); }; } const debouncedTriggerPostRender = debounce( function() { triggerPostRender(); }, 200 ); if ( visibilityTestDiv && visibilityTestDiv.offsetParent === null ) { const observer = new MutationObserver( ( mutations ) => { mutations.forEach( ( mutation ) => { if ( mutation.type === 'attributes' && visibilityTestDiv.offsetParent !== null ) { debouncedTriggerPostRender(); observer.disconnect(); } }); }); observer.observe( document.body, { attributes: true, childList: false, subtree: true, attributeFilter: [ 'style', 'class' ], }); } else { triggerPostRender(); } } ); /* ]]> */ </script> <script type="text/javascript" src="/-JVF2Mt77XrPue0oWQ_DN-r_/XEYukNG8mrG8EimE/LFhk/MBsdTQN/rVQM"></script></body></html>