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Ion Channels | Pharmacology | Tocris Bioscience
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<p><strong>Ion channels</strong> are pore-forming membrane proteins which allow the passage of ions in and out of a cell through the plasma membrane. Hundreds of different types of ion channel have been identified in the membranes of all biological cells.</p> <div class="pharm_sub_cats"><h3>Products for Ion Channels</h3><ul class="tile_column_1"><li><a href="/pharmacology/aquaporins" title="Browse products for Aquaporins">Aquaporins</a></li><li><a href="/pharmacology/calcium-channels" title="Browse products for Calcium Channels">Calcium Channels</a></li><li><a href="/pharmacology/chloride-channels" title="Browse products for Chloride Channels">Chloride Channels</a></li><li><a href="/pharmacology/ionophores" title="Browse products for Ionophores">Ionophores</a></li><li><a href="/pharmacology/ligand-gated-ion-channels" title="Browse products for Ligand-gated Ion Channels">Ligand-gated Ion Channels</a></li></ul><ul class="tile_column_2"><li><a href="/pharmacology/other-channel-modulators" title="Browse products for Other Channel Modulators">Other Channel Modulators</a></li><li><a href="/pharmacology/piezo-channels" title="Browse products for Piezo Channels">Piezo Channels</a></li><li><a href="/pharmacology/potassium-channels" title="Browse products for Potassium Channels">Potassium Channels</a></li><li><a href="/pharmacology/sodium-channels" title="Browse products for Sodium Channels">Sodium Channels</a></li><li><a href="/pharmacology/transient-receptor-potential-channels" title="Browse products for Transient Receptor Potential Channels">Transient Receptor Potential Channels</a></li></ul></div> <div class="pharm_rel_cats"><h3>Related Targets</h3><ul class="tile_column_1"><li><a href="/product-type/fluorescent-ion-indicators" title="Browse products for Fluorescent Ion Indicators">Fluorescent Ion Indicators</a></li><li><a href="/cell-biology/gap-channels" title="Browse products for Gap Channels">Gap Channels</a></li></ul><ul class="tile_column_2"><li><a href="/pharmacology/ion-pumps-and-transporters" title="Browse products for Ion Pumps/Transporters">Ion Pumps/Transporters</a></li></ul></div> <div class="pharm_long_desc"><h5>Classification</h5> <p>Ion channels can be classified by different properties, including by the gating mechanism or the ion selectivity of the pore.</p> <div class='pB50'> <p><strong>Classification by gating mechanism:</strong></p> <ul> <li>Voltage-gated ion channels</li> <li>Ligand-gated ion channels (also known as ionotropic receptors)</li> <li>Light-gated ion channels</li> <li>Mechanosensitive ion channels</li> <li>Cyclic nucleotide-gated ion channels</li> <li>Calcium-gated ion channels</li> </ul> </div> <div class='pB50'> <p><strong>Classification by ion selectivity:</strong></p> <ul> <li>Calcium</li> <li>Potassium</li> <li>Sodium</li> <li>Chloride</li> <li>Proton</li> <li>Non-selective (let any type of ion pass)</li> </ul> </div> <div class='left'></div> <h5>Physiology and Disease</h5> <p>Ion channels are essential for life and play a fundamental role in physiological processes such as muscle contraction and nutrient transport. A multitude of diseases result from the disruption of normal ion channel function. Disorders resulting from a mutation in the gene encoding an ion channel or its regulatory proteins are called channelopathies. Common channelopathies include cystic fibrosis, long QT syndrome and epilepsy. Ion channels are also involved in non-genetic diseases, such as diarrhea, which is mediated by toxicological effects on ion channel function.</p></div> </div> <div id="sidebar" class="col-xs-12 col-sm-4 col-md-3 col-lg-3 col-xl-3"> <div class="resources_sidebar_container"> <div class="fp_four_box"> <div class="fp_box_wrapper"><h3>Featured New Products</h3> <div class="fp_featured_product"><a href="/products/vu-0542270_8151">8151 | VU 0542270</a><br /> Selective inhibitor of K<sub>ir</sub>6.1 K<sub>ATP</sub> channels</div> <div class="fp_featured_product"><a href="/products/rna-imaging-probe-1c_8813">8813 | RNA Imaging Probe 1c</a><br /> Fluorogenic RNA imaging probe</div> <div class="fp_featured_product"><a href="/products/lsn-3318839_7959">7959 | LSN 3318839</a><br /> Glucagon-like peptide-1 receptor <br />(GLP1-R) positive allosteric modulator</div> <div class="fp_featured_product"><a href="/products/chir-99021-in-solution_8170">8170 | CHIR 99021 in solution</a><br /> 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