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	<id>https://wikimd.org/index.php?action=history&amp;feed=atom&amp;title=Decay-accelerating_factor</id>
	<title>Decay-accelerating factor - Revision history</title>
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	<updated>2026-05-09T22:22:16Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
	<generator>MediaWiki 1.44.2</generator>
	<entry>
		<id>https://wikimd.org/index.php?title=Decay-accelerating_factor&amp;diff=6527896&amp;oldid=prev</id>
		<title>Prab at 17:19, 18 March 2025</title>
		<link rel="alternate" type="text/html" href="https://wikimd.org/index.php?title=Decay-accelerating_factor&amp;diff=6527896&amp;oldid=prev"/>
		<updated>2025-03-18T17:19:46Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 17:19, 18 March 2025&lt;/td&gt;
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&lt;/table&gt;</summary>
		<author><name>Prab</name></author>
	</entry>
	<entry>
		<id>https://wikimd.org/index.php?title=Decay-accelerating_factor&amp;diff=6503170&amp;oldid=prev</id>
		<title>Prab: CSV import</title>
		<link rel="alternate" type="text/html" href="https://wikimd.org/index.php?title=Decay-accelerating_factor&amp;diff=6503170&amp;oldid=prev"/>
		<updated>2025-03-17T09:09:42Z</updated>

		<summary type="html">&lt;p&gt;CSV import&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 09:09, 17 March 2025&lt;/td&gt;
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&lt;/table&gt;</summary>
		<author><name>Prab</name></author>
	</entry>
	<entry>
		<id>https://wikimd.org/index.php?title=Decay-accelerating_factor&amp;diff=6224369&amp;oldid=prev</id>
		<title>Prab: CSV import</title>
		<link rel="alternate" type="text/html" href="https://wikimd.org/index.php?title=Decay-accelerating_factor&amp;diff=6224369&amp;oldid=prev"/>
		<updated>2025-02-10T13:43:07Z</updated>

		<summary type="html">&lt;p&gt;CSV import&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 13:43, 10 February 2025&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l35&quot;&gt;Line 35:&lt;/td&gt;
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&lt;/table&gt;</summary>
		<author><name>Prab</name></author>
	</entry>
	<entry>
		<id>https://wikimd.org/index.php?title=Decay-accelerating_factor&amp;diff=6223876&amp;oldid=prev</id>
		<title>Prab: CSV import</title>
		<link rel="alternate" type="text/html" href="https://wikimd.org/index.php?title=Decay-accelerating_factor&amp;diff=6223876&amp;oldid=prev"/>
		<updated>2025-02-10T13:27:52Z</updated>

		<summary type="html">&lt;p&gt;CSV import&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 13:27, 10 February 2025&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l35&quot;&gt;Line 35:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 35:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Genes]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Genes]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Medical terminology]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Medical terminology]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;{{No image}}&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Prab</name></author>
	</entry>
	<entry>
		<id>https://wikimd.org/index.php?title=Decay-accelerating_factor&amp;diff=5202501&amp;oldid=prev</id>
		<title>Prab: CSV import</title>
		<link rel="alternate" type="text/html" href="https://wikimd.org/index.php?title=Decay-accelerating_factor&amp;diff=5202501&amp;oldid=prev"/>
		<updated>2024-02-22T01:08:40Z</updated>

		<summary type="html">&lt;p&gt;CSV import&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;Decay-accelerating factor&amp;#039;&amp;#039;&amp;#039; (DAF), also known as &amp;#039;&amp;#039;&amp;#039;CD55&amp;#039;&amp;#039;&amp;#039; or &amp;#039;&amp;#039;&amp;#039;Cromer blood group system&amp;#039;&amp;#039;&amp;#039;, is a protein that in humans is encoded by the CD55 gene. DAF regulates the complement system on the cell surface to prevent the assembly of the complement membrane attack complex (MAC) on host cells.&lt;br /&gt;
&lt;br /&gt;
== Function ==&lt;br /&gt;
&lt;br /&gt;
[[Decay-accelerating factor]] is involved in the regulation of the [[complement cascade]]. It protects cells from complement-mediated injury by inhibiting the C3 convertases, C4b2a and C3bBb, and by disrupting the function of these convertases.&lt;br /&gt;
&lt;br /&gt;
== Clinical significance ==&lt;br /&gt;
&lt;br /&gt;
Deficiency of DAF can lead to [[paroxysmal nocturnal hemoglobinuria]] (PNH), a rare, acquired, potentially life-threatening disease of the blood characterized by complement-mediated intravascular hemolysis.&lt;br /&gt;
&lt;br /&gt;
== Interactions ==&lt;br /&gt;
&lt;br /&gt;
Decay-accelerating factor has been shown to [[Protein-protein interaction|interact]] with [[Complement component 3]] and [[Complement component 4b]].&lt;br /&gt;
&lt;br /&gt;
== See also ==&lt;br /&gt;
&lt;br /&gt;
* [[Complement system]]&lt;br /&gt;
* [[Paroxysmal nocturnal hemoglobinuria]]&lt;br /&gt;
* [[Complement component 3]]&lt;br /&gt;
* [[Complement component 4b]]&lt;br /&gt;
&lt;br /&gt;
== References ==&lt;br /&gt;
&lt;br /&gt;
&amp;lt;references /&amp;gt;&lt;br /&gt;
&lt;br /&gt;
== External links ==&lt;br /&gt;
&lt;br /&gt;
* [https://www.wikimd.com/wiki/Decay-accelerating_factor Decay-accelerating factor] at WikiMD&lt;br /&gt;
&lt;br /&gt;
{{stub}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Proteins]]&lt;br /&gt;
[[Category:Complement system]]&lt;br /&gt;
[[Category:Blood]]&lt;br /&gt;
[[Category:Genes]]&lt;br /&gt;
[[Category:Medical terminology]]&lt;/div&gt;</summary>
		<author><name>Prab</name></author>
	</entry>
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