Complement C5: Difference between revisions
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<StructureSection load=' | <StructureSection load='' size='350' side='right' caption='Human complement C5 complex (green) with cobra venom factor (magenta) (PDB code [[9tdl]])' scene='70/705685/Cv/6'> | ||
__TOC__ | |||
== Function == | |||
== | '''Complement C5''' (CC5) is the fifth component of the complement system. The complement system is part of the innate immune system. CC5 is composed of α chain (C5a) and β chain (C5b). Proteoplytic degradation of CC5 produces <scene name='70/705685/Cv/4'>anaphylatoxin</scene> which is a mediator of local inflammatory process. The C terminal domain of CC5 (residues 1530-1676) is homologous to a domain in netrins and is named <scene name='70/705685/Cv/5'>C345C</scene>. Activation of CC5 by C5 convertase initiates the assembly of the C5 to C9 components into the membrane attack complex. <ref>PMID:18536718</ref> | ||
== Disease == | == Disease == | ||
Mutations in CC5 cause a deficiency leading to severe recurrent infections and are linked to liver fibrosis and rheumatoid arthritis. | Mutations in CC5 cause a deficiency leading to severe recurrent infections and are linked to liver fibrosis, Leiner's disease and rheumatoid arthritis. | ||
== 3D Structures of complement C5 == | |||
[[Complement C5 3D structures]] | |||
</StructureSection> | </StructureSection> | ||
== References == | == References == | ||
<references/> | <references/> | ||
[[Category:Topic Page]] | |||
Latest revision as of 15:51, 9 August 2026
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