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class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">From Wikipedia, the free encyclopedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Medical condition</div><style data-mw-deduplicate="TemplateStyles:r1257001546">.mw-parser-output .infobox-subbox{padding:0;border:none;margin:-3px;width:auto;min-width:100%;font-size:100%;clear:none;float:none;background-color:transparent}.mw-parser-output .infobox-3cols-child{margin:auto}.mw-parser-output .infobox .navbar{font-size:100%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data:not(.notheme)>div:not(.notheme)[style]{background:#1f1f23!important;color:#f8f9fa}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data:not(.notheme) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><table class="infobox ib-medical-condition"><tbody><tr><th colspan="2" class="infobox-above" style="background:#ccc">Properdin deficiency</th></tr><tr style="background-color: #f8f9fa;"><td colspan="2" class="infobox-full-data"><span typeof="mw:File"><a href="/wiki/File:X-linked_recessive.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/X-linked_recessive.svg/140px-X-linked_recessive.svg.png" decoding="async" width="140" height="213" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/X-linked_recessive.svg/210px-X-linked_recessive.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/X-linked_recessive.svg/280px-X-linked_recessive.svg.png 2x" data-file-width="600" data-file-height="911" /></a></span></td></tr><tr><td colspan="2" class="infobox-full-data">This condition is inherited in an x-linked recessive manner</td></tr></tbody></table> <p><b>Properdin deficiency</b> is a rare <a href="/wiki/X-linked" class="mw-redirect" title="X-linked">X-linked</a> disease in which <a href="/wiki/Properdin" title="Properdin">properdin</a>, an important <a href="/wiki/Complement_system" title="Complement system">complement factor</a> responsible for the stabilization of the alternative C3 convertase, is deficient.<sup id="cite_ref-pmid10909851_1-0" class="reference"><a href="#cite_note-pmid10909851-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> There are three forms of properdin deficiencies: Type I, which is identified by the total absence of the properdin protein in the plasma, Type II, which is a low but detectable amount of the properdin protein in the plasma, and Type III, which is a rare case of normal levels of properdin protein, but a dysfunctional variant.<sup id="cite_ref-:1_2-0" class="reference"><a href="#cite_note-:1-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> One of the first studied cases of properdin deficiency was in 1980 by <a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/6903190/">Davis and Forrestal</a>.<sup id="cite_ref-:0_3-0" class="reference"><a href="#cite_note-:0-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> These families had members with only partial deficiencies which resulted in a lowered consumption of the <a href="/wiki/Complement_component_3" title="Complement component 3">C3</a> protein.<sup id="cite_ref-:0_3-1" class="reference"><a href="#cite_note-:0-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> Properdin deficiency was studied again shortly after in 1982 by <a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/7151327/">Sjoholm</a> in which all of the subjects were deceased shortly after the study because of their disease.<sup id="cite_ref-:0_3-2" class="reference"><a href="#cite_note-:0-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> The largest study of properdin deficiency was in 1989 by <a rel="nofollow" class="external text" href="https://www.omim.org/entry/312060#6">Fijen</a> which included nine males across three generations.<sup id="cite_ref-:0_3-3" class="reference"><a href="#cite_note-:0-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> Out of the 46 family members in <a rel="nofollow" class="external text" href="https://www.omim.org/entry/312060#6">Fijen's</a> study, the 9 who were affected were found to be more susceptible to diseases from the <i><a href="/wiki/Neisseria" title="Neisseria">Neisseria</a></i> genus.<sup id="cite_ref-:0_3-4" class="reference"><a href="#cite_note-:0-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Signs_and_symptoms">Signs and symptoms</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Properdin_deficiency&action=edit&section=1" title="Edit section: Signs and symptoms"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>As a protein involved in the function of the immune system, no external changes in physiology or aberrant physical characteristics are expressed by individuals possessing a properdin deficiency. However, individuals that have a properdin deficiency do have a heightened susceptibility to bacterial infections, most notably caused by bacteria within the <i><a href="/wiki/Neisseria" title="Neisseria">Neisseria</a></i> genus, though there have also been studied cases of individuals with recurrent pneumococcus bacteremia as a result of <i><a href="/wiki/Streptococcus_pneumoniae" title="Streptococcus pneumoniae">Streptococcus pneumoniae</a></i>, another species of bacteria from an entirely different phylum.<sup id="cite_ref-:0_3-5" class="reference"><a href="#cite_note-:0-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> Due to a heightened susceptibility to <i>Neisseria</i> bacterium, individuals with properdin deficiency are far more likely to succumb to bacterial infection such as <a href="/wiki/Meningitis" title="Meningitis">meningitis</a>, resulting in inflammation of the brain and spinal cord, which causes severe headaches, fevers, and neck stiffness, and may result in further development of other <a href="/wiki/Meningococcal_disease" title="Meningococcal disease">meningococcal diseases</a> and extreme complications such as <a href="/wiki/Sepsis" title="Sepsis">sepsis</a>.<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> Individuals with properdin deficiency are also more likely to catch the sexually transmitted disease, <a href="/wiki/Gonorrhea" title="Gonorrhea">gonorrhea</a>, as it is also caused by <i>Neisseria</i> bacterium, resulting in swelling, itching, pain, and formation of pus on the mucous membranes, including, but not limited to, the genitals, mouth, and rectum.<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Diagnosis">Diagnosis</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Properdin_deficiency&action=edit&section=2" title="Edit section: Diagnosis"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>As mentioned before, there are no external indications of properdin deficiency, and as such, properdin deficiency can only be reliably detected by lab tests.<sup id="cite_ref-:0_3-6" class="reference"><a href="#cite_note-:0-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> The typical tests for complement deficiencies, such as the measurement of <a href="/wiki/Complement_component_3" title="Complement component 3">C3</a> and <a href="/wiki/Complement_component_4" title="Complement component 4">C4</a>, do not detect low levels of the absence of properdin.<sup id="cite_ref-:1_2-1" class="reference"><a href="#cite_note-:1-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> These pathways are typically unaltered by any of the three types of properdin deficiencies, but even when they are affected, it is typically within normal levels and is not cause for concern.<sup id="cite_ref-:1_2-2" class="reference"><a href="#cite_note-:1-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> Instead, histories of infection with anything from the <i><a href="/wiki/Neisseria" title="Neisseria">Neisseria</a></i> genus as well as family history can be indicators, but only specialist centers can screen for properdin deficiencies using immunochemical assays.<sup id="cite_ref-:1_2-3" class="reference"><a href="#cite_note-:1-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> In particular, the use of <a href="/wiki/ELISA" title="ELISA">ELISA</a> proves to be one of the most effective methods of detecting properdin deficiency, as the average healthy male is expected to show properdin antigen levels of around 128.0 ELISA units/ml, and obligate carrier females (recall that properdin deficiency is an X-linked disease) tend to show an average of 45.6 units/ml.<sup id="cite_ref-:0_3-7" class="reference"><a href="#cite_note-:0-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> An individual with properdin deficiency should, by definition, show very little to no properdin antigen levels at all, as they do not possess the requisite gene to produce the protein. While properdin deficiencies are rare, they have only been diagnosed in Caucasians, but no other race/ethnicity.<sup id="cite_ref-:1_2-4" class="reference"><a href="#cite_note-:1-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Management">Management</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Properdin_deficiency&action=edit&section=3" title="Edit section: Management"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Pertaining to complement deficiencies, there is no cure and the treatments for complement deficiencies vary widely. The best course of action for management is usually for a patient to treat the complement deficiency as an immune deficiency and get immunized against the microbe associated with their deficiency (or best candidate).<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> As mentioned earlier, individuals with properdin deficiency are increasingly susceptible to <i>Neisseria</i> bacterium. Recent studies have indicated that individuals with properdin deficiency respond well when they are immunized with tetravalent polysaccharide meningococcal vaccine, which generates anti capsular antibodies and bactericidal anti-meningococcal activity against <a href="/wiki/Serotype" title="Serotype">serotypes</a> covered by the given vaccine.<sup id="cite_ref-:1_2-5" class="reference"><a href="#cite_note-:1-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> The vaccine has been reported to lower the chances of reinfection by meningococci in individuals who have undergone the treatment, however the vaccine does not protect against group B meningococci and chemotherapy is recommended if full protection from all meningococci variants is desired.<sup id="cite_ref-:1_2-6" class="reference"><a href="#cite_note-:1-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Genetics">Genetics</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Properdin_deficiency&action=edit&section=4" title="Edit section: Genetics"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Properdin deficiency is caused by an X-linked recessive allele, meaning that the gene responsible is only present on the <a href="/wiki/X_chromosome" title="X chromosome">X chromosome</a>. Given that it is recessive, this means that the condition can only be inherited if the alleles for both X-chromosomes have the deficiency if the patient is female (xx) or if patient only has one X chromosome, as with male patients (xY). This means that a female could be heterozygous for the allele (Xx) and not express the weakened immune system, as individuals with partial properdin deficiency have been shown to function effectively the same as healthy individuals.<sup id="cite_ref-:0_3-8" class="reference"><a href="#cite_note-:0-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> This also means that any male patient that receives the recessive allele from their mother will inherit the deficiency, regardless of the genotype of their father, as the father must have passed the <a href="/wiki/Y_chromosome" title="Y chromosome">Y chromosome</a> to them, which plays no part in genes with x-linked inheritance. </p><p>The gene responsible for the production of properdin, <a rel="nofollow" class="external text" href="https://www.omim.org/entry/300383#0001">Complement Factor Properdin</a> (CFP), lies on the X-chromosome at the coordinates: GRCh38: X:47,623,281-47,630,304.<sup id="cite_ref-:2_8-0" class="reference"><a href="#cite_note-:2-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> There are three types of properdin deficiency, which are caused by different mutations in the exons of the CFP gene.<sup id="cite_ref-:2_8-1" class="reference"><a href="#cite_note-:2-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </p><p>Type I properdin deficiency can be the result of a nonsense mutation on exon 5 of the CDP gene, caused by a C-to-T <a href="/wiki/Transition_(genetics)" title="Transition (genetics)">transition</a> at position 2767, which results in an early termination of the sequence and the production of an immature properdin protein.<sup id="cite_ref-:2_8-2" class="reference"><a href="#cite_note-:2-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> Type I can also be the result of a G-T <a href="/wiki/Transversion" title="Transversion">transversion</a> at position 3511 in exon 7, causing an amino acid substitution from <a href="/wiki/Glycine" title="Glycine">gly271</a> to <a href="/wiki/Valine" title="Valine">valine</a>, which renders the protein non-functional.<sup id="cite_ref-:2_8-3" class="reference"><a href="#cite_note-:2-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> Finally, Type I can alternatively be caused by a C-to-G transversion on exon 6 at position 3041, converting a <a href="/wiki/Serine" title="Serine">serine</a> codon to a stop codon.<sup id="cite_ref-:2_8-4" class="reference"><a href="#cite_note-:2-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </p><p>Type II properdin deficiency is thought to be caused by one or both of two mutations on the CFP gene.<sup id="cite_ref-:2_8-5" class="reference"><a href="#cite_note-:2-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> One of the mutations is a C-to-T transition at position 2124, located on exon 4, which converted an <a href="/wiki/Arginine" title="Arginine">arginine</a> to a <a href="/wiki/Tryptophan" title="Tryptophan">tryptophan</a>, resulting in an improper protein fold.<sup id="cite_ref-:2_8-6" class="reference"><a href="#cite_note-:2-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> The second mutation is a G-to-A transition at position 827 in intron 3, which is hypothesized to cause a <a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC275472/#:~:text=Cryptic%20splice%20sites%20also%20match,at%20the%20authentic%20splice%20site.">cryptic splice site</a>, resulting in improper splicing of the mRNA.<sup id="cite_ref-:2_8-7" class="reference"><a href="#cite_note-:2-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </p><p>Type III properdin deficiency is caused by a T-to-G mutation on exon 9, resulting in a conversion of <a href="/wiki/Tyrosine" title="Tyrosine">tyr387</a> to <a href="/wiki/Aspartic_acid" title="Aspartic acid">aspartic acid</a>, resulting in an ineffective protein.<sup id="cite_ref-:2_8-8" class="reference"><a href="#cite_note-:2-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </p><p>Type I and type II properdin deficiency result in an absence or extremely low presence of properdin, whereas type III results in the presence of a dysfunctional properdin protein structure.<sup id="cite_ref-:0_3-9" class="reference"><a href="#cite_note-:0-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> Ultimately, all three types have the same basic effect, reducing defensive capabilities against bacteria, especially those previously mentioned. </p> <div class="mw-heading mw-heading2"><h2 id="Epidemiology">Epidemiology</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Properdin_deficiency&action=edit&section=5" title="Edit section: Epidemiology"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Complement deficiencies are rare and currently not well characterized, so there has been difficulty detecting them. Currently, complement deficiencies only comprise approximately 2% of all <a href="/wiki/Primary_immunodeficiency_disorders" class="mw-redirect" title="Primary immunodeficiency disorders">primary immunodeficiency disorders</a>. While the frequency of properdin deficiency has not been assessed worldwide, the risk of meningococcal infection in an individual with properdin deficiency has been calculated to be around 50%.<sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Properdin_deficiency&action=edit&section=6" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-pmid10909851-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-pmid10909851_1-0">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite id="CITEREFvan_den_BogaardFijenSchipperde_Galan2000" class="citation journal cs1">van den Bogaard R, Fijen CA, Schipper MG, de Galan L, Kuijper EJ, Mannens MM (July 2000). <a rel="nofollow" class="external text" href="https://doi.org/10.1038%2Fsj.ejhg.5200496">"Molecular characterisation of 10 Dutch properdin type I deficient families: mutation analysis and X-inactivation studies"</a>. <i>Eur. 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Retrieved <span class="nowrap">2022-03-24</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=primaryimmune.org&rft.atitle=Complement+Deficiencies+%7C+Immune+Deficiency+Foundation&rft_id=https%3A%2F%2Fprimaryimmune.org%2Fabout-primary-immunodeficiencies%2Fspecific-disease-types%2Fcomplement-deficiencies&rfr_id=info%3Asid%2Fen.wikipedia.org%3AProperdin+deficiency" class="Z3988"></span></span> </li> <li id="cite_note-:2-8"><span class="mw-cite-backlink">^ <a href="#cite_ref-:2_8-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-:2_8-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-:2_8-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-:2_8-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-:2_8-4"><sup><i><b>e</b></i></sup></a> <a href="#cite_ref-:2_8-5"><sup><i><b>f</b></i></sup></a> <a href="#cite_ref-:2_8-6"><sup><i><b>g</b></i></sup></a> <a href="#cite_ref-:2_8-7"><sup><i><b>h</b></i></sup></a> <a href="#cite_ref-:2_8-8"><sup><i><b>i</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.omim.org/entry/300383#0001">"OMIM Entry - * 300383 - COMPLEMENT FACTOR PROPERDIN; CFP"</a>. <i>www.omim.org</i><span class="reference-accessdate">. Retrieved <span class="nowrap">2022-03-24</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=www.omim.org&rft.atitle=OMIM+Entry+-+%2A+300383+-+COMPLEMENT+FACTOR+PROPERDIN%3B+CFP&rft_id=https%3A%2F%2Fwww.omim.org%2Fentry%2F300383%230001&rfr_id=info%3Asid%2Fen.wikipedia.org%3AProperdin+deficiency" class="Z3988"></span></span> </li> <li id="cite_note-9"><span class="mw-cite-backlink"><b><a href="#cite_ref-9">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFLeung2021" class="citation book cs1">Leung, Donald Y. M., ed. (2021). <a rel="nofollow" class="external text" href="https://www.worldcat.org/title/on1202992443"><i>Pediatric allergy: principles and practice</i></a> (Fourth ed.). Amsterdam: Elsevier. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-0-323-67462-1" title="Special:BookSources/978-0-323-67462-1"><bdi>978-0-323-67462-1</bdi></a>. <a href="/wiki/OCLC_(identifier)" class="mw-redirect" title="OCLC (identifier)">OCLC</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/oclc/1202992443">1202992443</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Pediatric+allergy%3A+principles+and+practice&rft.place=Amsterdam&rft.edition=Fourth&rft.pub=Elsevier&rft.date=2021&rft_id=info%3Aoclcnum%2Fon1202992443&rft.isbn=978-0-323-67462-1&rft_id=https%3A%2F%2Fwww.worldcat.org%2Ftitle%2Fon1202992443&rfr_id=info%3Asid%2Fen.wikipedia.org%3AProperdin+deficiency" class="Z3988"></span></span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span 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margin:0.5em 0 0.5em 0;;padding:3px"><table class="nowraplinks navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="row" class="navbox-group" style="width:1%;background: #EAECF0;color:black;">Classification</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"><div style="position:relative; float:right; font-size:0.8em;"><a href="https://www.wikidata.org/wiki/Q7250189" class="extiw" title="d:Q7250189">D</a></div><div class="hlist" style="text-align:left;"><ul><li><b><a href="/wiki/International_Statistical_Classification_of_Diseases_and_Related_Health_Problems" class="mw-redirect" title="International Statistical Classification of Diseases and Related Health Problems">ICD</a>-<a href="/wiki/ICD-10" title="ICD-10">10</a></b>: D84.1</li><li><b><a href="/wiki/Online_Mendelian_Inheritance_in_Man" title="Online Mendelian Inheritance in Man">OMIM</a></b>: <a rel="nofollow" class="external text" href="https://omim.org/entry/312060">312060</a></li><li><b><a href="/wiki/Medical_Subject_Headings" title="Medical Subject Headings">MeSH</a></b>: <a rel="nofollow" class="external text" href="https://meshb.nlm.nih.gov/record/ui?ui=C537241">C537241</a></li></ul></div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background: #EAECF0;color:black;">External resources</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"><div class="hlist" style="text-align:left;"><ul><li><b><a href="/wiki/Orphanet" title="Orphanet">Orphanet</a></b>: <a rel="nofollow" class="external text" href="https://www.orpha.net/consor/cgi-bin/OC_Exp.php?lng=en&Expert=2966">2966</a></li></ul></div></div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" 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title="Template talk:Lymphoid and complement immunodeficiency"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Lymphoid_and_complement_immunodeficiency" title="Special:EditPage/Template:Lymphoid and complement immunodeficiency"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Lymphoid_and_complement_disorders_causing_immunodeficiency" style="font-size:114%;margin:0 4em"><a href="/wiki/Lymphatic_system" title="Lymphatic system">Lymphoid</a> and <a href="/wiki/Complement_system" title="Complement system">complement</a> disorders causing <a href="/wiki/Immunodeficiency" title="Immunodeficiency">immunodeficiency</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Primary_immunodeficiency" title="Primary immunodeficiency">Primary</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Antibody" title="Antibody">Antibody</a>/<a href="/wiki/Humoral_immune_deficiency" title="Humoral immune deficiency">humoral</a><br />(<a href="/wiki/B_cell" title="B cell">B</a>)</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Hypogammaglobulinemia" title="Hypogammaglobulinemia">Hypogammaglobulinemia</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/X-linked_agammaglobulinemia" title="X-linked agammaglobulinemia">X-linked agammaglobulinemia</a></li> <li><a href="/wiki/Transient_hypogammaglobulinemia_of_infancy" title="Transient hypogammaglobulinemia of infancy">Transient hypogammaglobulinemia of infancy</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Dysgammaglobulinemia" title="Dysgammaglobulinemia">Dysgammaglobulinemia</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Selective_immunoglobulin_A_deficiency" title="Selective immunoglobulin A deficiency">IgA deficiency</a></li> <li><a href="/wiki/IgG_deficiency" title="IgG deficiency">IgG deficiency</a></li> <li><a href="/wiki/Immunoglobulin_M_deficiency" class="mw-redirect" title="Immunoglobulin M deficiency">IgM deficiency</a></li> <li><a href="/wiki/Hyper_IgM_syndrome" title="Hyper IgM syndrome">Hyper IgM syndrome</a> (<a href="/wiki/Hyper-IgM_syndrome_type_1" title="Hyper-IgM syndrome type 1">1</a></li> <li><a href="/wiki/Hyper-IgM_syndrome_type_2" title="Hyper-IgM syndrome type 2">2</a></li> <li><a href="/wiki/Hyper-IgM_syndrome_type_3" title="Hyper-IgM syndrome type 3">3</a></li> <li><a href="/wiki/Hyper-IgM_syndrome_type_4" title="Hyper-IgM syndrome type 4">4</a></li> <li><a href="/wiki/Hyper-IgM_syndrome_type_5" title="Hyper-IgM syndrome type 5">5</a>)</li> <li><a href="/wiki/Wiskott%E2%80%93Aldrich_syndrome" title="Wiskott–Aldrich syndrome">Wiskott–Aldrich syndrome</a></li> <li><a href="/wiki/Hyperimmunoglobulin_E_syndrome" title="Hyperimmunoglobulin E syndrome">Hyper-IgE syndrome</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Other</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Common_variable_immunodeficiency" title="Common variable immunodeficiency">Common variable immunodeficiency</a></li> <li><a href="/wiki/ICF_syndrome" class="mw-redirect" title="ICF syndrome">ICF syndrome</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/T_cell_deficiency" title="T cell deficiency">T cell deficiency</a><br />(<a href="/wiki/T_cell" title="T cell">T</a>)</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i><a href="/wiki/Thymic_hypoplasia" title="Thymic hypoplasia">thymic hypoplasia</a>:</i> <i>hypoparathyroid</i> (<a href="/wiki/DiGeorge_syndrome" title="DiGeorge syndrome">Di George's syndrome</a>)</li> <li><i>euparathyroid</i> (<a href="/wiki/Nezelof_syndrome" title="Nezelof syndrome">Nezelof syndrome</a></li> <li><a href="/wiki/Ataxia%E2%80%93telangiectasia" title="Ataxia–telangiectasia">Ataxia–telangiectasia</a>)</li></ul> <p><i>peripheral:</i> <a href="/wiki/Purine_nucleoside_phosphorylase_deficiency" title="Purine nucleoside phosphorylase deficiency">Purine nucleoside phosphorylase deficiency</a> </p> <ul><li><a href="/wiki/Hyper_IgM_syndrome" title="Hyper IgM syndrome">Hyper IgM syndrome</a> (<a href="/wiki/Hyper-IgM_syndrome_type_1" title="Hyper-IgM syndrome type 1">1</a>)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Severe_combined_immunodeficiency" title="Severe combined immunodeficiency">Severe</a> <a href="/wiki/Combined_immunodeficiencies" title="Combined immunodeficiencies">combined</a><br />(B+T)</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i>x-linked:</i> <a href="/wiki/X-linked_severe_combined_immunodeficiency" title="X-linked severe combined immunodeficiency">X-SCID</a><br /><i>autosomal:</i> <a href="/wiki/Adenosine_deaminase_deficiency" title="Adenosine deaminase deficiency">Adenosine deaminase deficiency</a></li> <li><a href="/wiki/Omenn_syndrome" title="Omenn syndrome">Omenn syndrome</a></li> <li><a href="/wiki/ZAP70_deficiency" title="ZAP70 deficiency">ZAP70 deficiency</a></li> <li><a href="/wiki/Bare_lymphocyte_syndrome" title="Bare lymphocyte syndrome">Bare lymphocyte syndrome</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Immunodeficiency#acquired" title="Immunodeficiency">Acquired</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/HIV/AIDS" title="HIV/AIDS">HIV/AIDS</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Leukopenia" title="Leukopenia">Leukopenia</a>:<br /><a href="/wiki/Lymphocytopenia" title="Lymphocytopenia">Lymphocytopenia</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Idiopathic_CD4%2B_lymphocytopenia" title="Idiopathic CD4+ lymphocytopenia">Idiopathic CD4+ lymphocytopenia</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Complement_deficiency" title="Complement deficiency">Complement<br />deficiency</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i><a href="/wiki/C1-inhibitor" title="C1-inhibitor">C1-inhibitor</a></i> (<a href="/wiki/Angioedema" title="Angioedema">Angioedema</a>/<a href="/wiki/Hereditary_angioedema" title="Hereditary angioedema">Hereditary angioedema</a>)</li> <li><a href="/wiki/Complement_2_deficiency" title="Complement 2 deficiency">Complement 2 deficiency</a>/<a href="/wiki/Complement_4_deficiency" title="Complement 4 deficiency">Complement 4 deficiency</a></li> <li><a href="/wiki/MBL_deficiency" title="MBL deficiency">MBL deficiency</a></li> <li><a class="mw-selflink selflink">Properdin deficiency</a></li> <li><a href="/wiki/Complement_3_deficiency" title="Complement 3 deficiency">Complement 3 deficiency</a></li> <li><a href="/wiki/Terminal_complement_pathway_deficiency" title="Terminal complement pathway deficiency">Terminal complement pathway deficiency</a></li> <li><a href="/wiki/Paroxysmal_nocturnal_hemoglobinuria" title="Paroxysmal nocturnal hemoglobinuria">Paroxysmal nocturnal hemoglobinuria</a></li> <li><a href="/wiki/Complement_receptor_deficiency" class="mw-redirect" title="Complement receptor deficiency">Complement receptor deficiency</a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="X-linked_disorders" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:X-linked_disorders" title="Template:X-linked disorders"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:X-linked_disorders" title="Template talk:X-linked disorders"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:X-linked_disorders" title="Special:EditPage/Template:X-linked disorders"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="X-linked_disorders" style="font-size:114%;margin:0 4em"><a href="/wiki/Sex_linkage" title="Sex linkage">X-linked</a> disorders</div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div id="X-linked_recessive" style="font-size:114%;margin:0 4em"><a href="/wiki/X-linked_recessive_inheritance" title="X-linked recessive inheritance">X-linked recessive</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Immune_disorder" title="Immune disorder">Immune</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Chronic_granulomatous_disease" title="Chronic granulomatous disease">Chronic granulomatous disease (CYBB)</a></li> <li><a href="/wiki/Wiskott%E2%80%93Aldrich_syndrome" title="Wiskott–Aldrich syndrome">Wiskott–Aldrich syndrome</a></li> <li><a href="/wiki/X-linked_severe_combined_immunodeficiency" title="X-linked severe combined immunodeficiency">X-linked severe combined immunodeficiency</a></li> <li><a href="/wiki/X-linked_agammaglobulinemia" title="X-linked agammaglobulinemia">X-linked agammaglobulinemia</a></li> <li><a href="/wiki/Hyper-IgM_syndrome_type_1" title="Hyper-IgM syndrome type 1">Hyper-IgM syndrome type 1</a></li> <li><a href="/wiki/IPEX_syndrome" title="IPEX syndrome">IPEX</a></li> <li><a href="/wiki/X-linked_lymphoproliferative_disease" title="X-linked lymphoproliferative disease">X-linked lymphoproliferative disease</a></li> <li><a class="mw-selflink selflink">Properdin deficiency</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Hematologic_disease" title="Hematologic disease">Hematologic</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Haemophilia_A" title="Haemophilia A">Haemophilia A</a></li> <li><a href="/wiki/Haemophilia_B" title="Haemophilia B">Haemophilia B</a></li> <li><a href="/wiki/Sideroblastic_anemia" title="Sideroblastic anemia">X-linked sideroblastic anemia</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Endocrine_disease" title="Endocrine disease">Endocrine</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Androgen_insensitivity_syndrome" title="Androgen insensitivity syndrome">Androgen insensitivity syndrome</a>/<a href="/wiki/Spinal_and_bulbar_muscular_atrophy" title="Spinal and bulbar muscular atrophy">Spinal and bulbar muscular atrophy</a></li> <li><a href="/wiki/Kallmann_syndrome" title="Kallmann syndrome">KAL1 Kallmann syndrome</a></li> <li><a href="/wiki/X-linked_adrenal_hypoplasia_congenita" title="X-linked adrenal hypoplasia congenita">X-linked adrenal hypoplasia congenita</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Metabolic_disorder" title="Metabolic disorder">Metabolic</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i><a href="/wiki/Congenital_disorders_of_amino_acid_metabolism" title="Congenital disorders of amino acid metabolism">Amino acid</a>:</i> <a href="/wiki/Ornithine_transcarbamylase_deficiency" title="Ornithine transcarbamylase deficiency">Ornithine transcarbamylase deficiency</a></li> <li><a href="/wiki/Oculocerebrorenal_syndrome" title="Oculocerebrorenal syndrome">Oculocerebrorenal syndrome</a></li></ul> <ul><li><i><a href="/wiki/Dyslipidemia" title="Dyslipidemia">Dyslipidemia</a>:</i> <a href="/wiki/Adrenoleukodystrophy" title="Adrenoleukodystrophy">Adrenoleukodystrophy</a></li></ul> <ul><li><i><a href="/wiki/Carbohydrate_metabolism" title="Carbohydrate metabolism">Carbohydrate metabolism</a>:</i> <a href="/wiki/Glucose-6-phosphate_dehydrogenase_deficiency" title="Glucose-6-phosphate dehydrogenase deficiency">Glucose-6-phosphate dehydrogenase deficiency</a></li> <li><a href="/wiki/Pyruvate_dehydrogenase_deficiency" title="Pyruvate dehydrogenase deficiency">Pyruvate dehydrogenase deficiency</a></li> <li><a href="/wiki/Danon_disease" title="Danon disease">Danon disease/glycogen storage disease Type IIb</a></li></ul> <ul><li><i><a href="/wiki/Lipid_storage_disorder" title="Lipid storage disorder">Lipid storage disorder</a></i>: <a href="/wiki/Fabry_disease" title="Fabry disease">Fabry disease</a></li></ul> <ul><li><i><a href="/wiki/Mucopolysaccharidosis" title="Mucopolysaccharidosis">Mucopolysaccharidosis</a>:</i> <a href="/wiki/Hunter_syndrome" title="Hunter syndrome">Hunter syndrome</a></li></ul> <ul><li><i><a href="/wiki/Inborn_errors_of_purine%E2%80%93pyrimidine_metabolism" title="Inborn errors of purine–pyrimidine metabolism">Purine–pyrimidine metabolism</a>:</i> <a href="/wiki/Lesch%E2%80%93Nyhan_syndrome" title="Lesch–Nyhan syndrome">Lesch–Nyhan syndrome</a></li></ul> <ul><li><i><a href="/wiki/Mineral_(nutrient)" title="Mineral (nutrient)">Mineral</a>:</i> <a href="/wiki/Menkes_disease" title="Menkes disease">Menkes disease</a>/<a href="/wiki/Occipital_horn_syndrome" title="Occipital horn syndrome">Occipital horn syndrome</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Nervous_system_disease" title="Nervous system disease">Nervous system</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i><a href="/wiki/X-linked_intellectual_disability" title="X-linked intellectual disability">X-linked intellectual disability</a>:</i> <a href="/wiki/Coffin%E2%80%93Lowry_syndrome" title="Coffin–Lowry syndrome">Coffin–Lowry syndrome</a></li> <li><a href="/wiki/MASA_syndrome" title="MASA syndrome">MASA syndrome</a></li> <li><a href="/wiki/Alpha-thalassemia_mental_retardation_syndrome" class="mw-redirect" title="Alpha-thalassemia mental retardation syndrome">Alpha-thalassemia mental retardation syndrome</a></li> <li><a href="/wiki/PHF8" title="PHF8">PHF8</a></li></ul> <ul><li><i>Eye disorders:</i> <a href="/wiki/Color_blindness#Genetic_modes_of_inheritance" title="Color blindness">Color blindness (red and green, but not blue)</a></li> <li><a href="/wiki/Ocular_albinism" title="Ocular albinism">Ocular albinism</a> (<a href="/wiki/Ocular_albinism_type_1" title="Ocular albinism type 1">1</a>)</li> <li><a href="/wiki/Norrie_disease" title="Norrie disease">Norrie disease</a></li> <li><a href="/wiki/Choroideremia" title="Choroideremia">Choroideremia</a></li></ul> <ul><li><i>Other:</i> <a href="/wiki/Charcot%E2%80%93Marie%E2%80%93Tooth_disease" title="Charcot–Marie–Tooth disease">Charcot–Marie–Tooth disease (CMTX2-3)</a></li> <li><a href="/wiki/Pelizaeus%E2%80%93Merzbacher_disease" title="Pelizaeus–Merzbacher disease">Pelizaeus–Merzbacher disease</a></li> <li><a href="/wiki/X-linked_spinal_muscular_atrophy_type_2" title="X-linked spinal muscular atrophy type 2">SMAX2</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Skin_condition" title="Skin condition">Skin</a> and related tissue</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Dyskeratosis_congenita" title="Dyskeratosis congenita">Dyskeratosis congenita</a></li> <li><a href="/wiki/Hypohidrotic_ectodermal_dysplasia" title="Hypohidrotic ectodermal dysplasia">Hypohidrotic ectodermal dysplasia (EDA)</a></li> <li><a href="/wiki/X-linked_ichthyosis" title="X-linked ichthyosis">X-linked ichthyosis</a></li> <li><a href="/wiki/X-linked_endothelial_corneal_dystrophy" title="X-linked endothelial corneal dystrophy">X-linked endothelial corneal dystrophy</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Neuromuscular_disease" title="Neuromuscular disease">Neuromuscular</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Becker_muscular_dystrophy" title="Becker muscular dystrophy">Becker muscular dystrophy</a>/<a href="/wiki/Duchenne_muscular_dystrophy" title="Duchenne muscular dystrophy">Duchenne</a></li> <li><a href="/wiki/Centronuclear_myopathy" title="Centronuclear myopathy">Centronuclear myopathy (MTM1)</a></li> <li><a href="/wiki/Conradi%E2%80%93H%C3%BCnermann_syndrome" title="Conradi–Hünermann syndrome">Conradi–Hünermann syndrome</a></li> <li><a href="/wiki/Emery%E2%80%93Dreifuss_muscular_dystrophy" title="Emery–Dreifuss muscular dystrophy">Emery–Dreifuss muscular dystrophy 1</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Urologic_disease" title="Urologic disease">Urologic</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Alport_syndrome" title="Alport syndrome">Alport syndrome</a></li> <li><a href="/wiki/Dent%27s_disease" title="Dent's disease">Dent's disease</a></li> <li><a href="/wiki/Nephrogenic_diabetes_insipidus" title="Nephrogenic diabetes insipidus">X-linked nephrogenic diabetes insipidus</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Bone" title="Bone">Bone</a>/<a href="/wiki/Tooth" title="Tooth">tooth</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Amelogenesis_imperfecta" title="Amelogenesis imperfecta">AMELX Amelogenesis imperfecta</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">No primary system</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Barth_syndrome" title="Barth syndrome">Barth syndrome</a></li> <li><a href="/wiki/McLeod_syndrome" title="McLeod syndrome">McLeod syndrome</a></li> <li><a href="/wiki/Smith%E2%80%93Fineman%E2%80%93Myers_syndrome" title="Smith–Fineman–Myers syndrome">Smith–Fineman–Myers syndrome</a></li> <li><a href="/wiki/Simpson%E2%80%93Golabi%E2%80%93Behmel_syndrome" title="Simpson–Golabi–Behmel syndrome">Simpson–Golabi–Behmel syndrome</a></li> <li><a href="/wiki/Mohr%E2%80%93Tranebj%C3%A6rg_syndrome" title="Mohr–Tranebjærg syndrome">Mohr–Tranebjærg syndrome</a></li> <li><a href="/wiki/Nasodigitoacoustic_syndrome" title="Nasodigitoacoustic syndrome">Nasodigitoacoustic syndrome</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div id="X-linked_dominant" style="font-size:114%;margin:0 4em"><a href="/wiki/X-linked_dominant_inheritance" title="X-linked dominant inheritance">X-linked dominant</a></div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd hlist ;" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/X-linked_hypophosphatemia" title="X-linked hypophosphatemia">X-linked hypophosphatemia</a></li> <li><a href="/wiki/Focal_dermal_hypoplasia" title="Focal dermal hypoplasia">Focal dermal hypoplasia</a></li> <li><a href="/wiki/Fragile_X_syndrome" title="Fragile X syndrome">Fragile X syndrome</a></li> <li><a href="/wiki/Aicardi_syndrome" title="Aicardi syndrome">Aicardi syndrome</a></li> <li><a href="/wiki/Incontinentia_pigmenti" title="Incontinentia pigmenti">Incontinentia pigmenti</a></li> <li><a href="/wiki/Rett_syndrome" title="Rett syndrome">Rett syndrome</a></li> <li><a href="/wiki/CHILD_syndrome" title="CHILD syndrome">CHILD syndrome</a></li> <li><a href="/wiki/Lujan%E2%80%93Fryns_syndrome" title="Lujan–Fryns syndrome">Lujan–Fryns syndrome</a></li> <li><a href="/wiki/Orofaciodigital_syndrome_1" title="Orofaciodigital syndrome 1">Orofaciodigital syndrome 1</a></li> <li><a href="/wiki/Craniofrontonasal_dysplasia" title="Craniofrontonasal dysplasia">Craniofrontonasal dysplasia</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" 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