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| == Function == | | == Function == |
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| '''Complement factor H''' (CFH) regulates the complement system which is part of the immune response. CFH protects cells by preventing the activation of the complement system when it is not needed. CFH contains 20 short consensus repeats (sushi domains, i.e., a 5 strand β-sandwich arrangement)<ref>PMID:15163532</ref>. '''Complement factor D''' (CFD) and '''Complement factor B''' (CFB) regulate a key step in the activation of the alternative complement pathway. CFD is a member of the chymotrypsin family of serine proteases. '''Complement factor I''' (CFI) is a serum protease that inhibits all complement pathways. | | *'''Complement factor H''' (CFH) regulates the complement system which is part of the immune response. CFH protects cells by preventing the activation of the complement system when it is not needed. CFH contains 20 short consensus repeats (sushi domains, i.e., a 5 strand β-sandwich arrangement)<ref>PMID:15163532</ref>. |
| | *'''Complement factor D''' (CFD) and '''Complement factor B''' (CFB) regulate a key step in the activation of the alternative complement pathway. CFD is a member of the chymotrypsin family of serine proteases. |
| | *'''Complement factor I''' (CFI) is a serum protease that inhibits all complement pathways. |
| | *'''Complement factor P''' (CFP) is a positive regulator of the alternative complement pathway<ref>PMID:28480349</ref>. |
| == Disease == | | == Disease == |
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| </StructureSection> | | </StructureSection> |
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| ==3D structures of complement factor==
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| Updated on {{REVISIONDAY2}}-{{MONTHNAME|{{REVISIONMONTH}}}}-{{REVISIONYEAR}}
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| {{#tree:id=OrganizedByTopic|openlevels=0|
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| *Complement factor B
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| **[[2ok5]] – hCFB residues 26-764<br />
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| **[[1dle]] – hCFB serine protease domain residues 470-764<br />
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| **[[1q0p]] – hCFB residues 254-476 (mutant) <br />
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| **[[1rrk]] – hCFB BB fragment residues 243-764 (mutant) <br />
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| *Complement factor B complexes
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| **[[1rs0]] – hCFB BB fragment (mutant) + DIP<br />
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| **[[1rtk]] – hCFB BB fragment (mutant) + guanidinobenzoate<br />
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| **[[5m6w]] – hCFB + complement C3 α+β chains<br />
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| **[[2xwj]] – hCFB (mutant) + complement C3 α+β chains<br />
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| **[[2xwb]] – hCFB (mutant) + hCFD (mutant) + complement C3 α+β chains<br />
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| **[[3hrz]], [[3hs0]] – hCFB (mutant) + cobra venom factor<br />
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| *Complement factor D
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| **[[1dsu]], [[1hfd]] – hCFD <br />
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| **[[1dst]], [[2xw9]], [[2xwa]], [[4cbn]], [[4cbo]] – hCFD (mutant) <br />
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| **[[1fdp]] – hCFD proenzyme <br />
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| *Complement factor D complexes
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| **[[1bio]], [[1dfp]], [[1dic]], [[5fbe]], [[5fbi]], [[5fck]], [[5fcr]], [[5mt0]], [[5mt4]], [[5nar]], [[5nat]], [[5naw]], [[5nb6]], [[5nb7]], [[5nba]], [[5tca]], [[5tcc]],[[6qmr]], [[6qmt]], [[6fut]], [[6fuj]], [[6fui]], [[6fuh]], [[6fug]], [[6ftz]], [[6fty]] – hCFD + inhibitor <br />
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| **[[4d9r]] – hCFD + antibody<br />
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| *Complement factor H
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| **[[1haq]], [[3gau]], [[3gav]], [[3gaw]] – hCFH – human - NMR<br />
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| **[[2rlp]] – hCFH 1-2 sushi domains - NMR <br />
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| **[[2rlq]] – hCFH 2-3 sushi domains - NMR <br />
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| **[[2qfg]] – hCFH 1-5 sushi domains <br />
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| **[[2yby]] – mCFH 6-8 sushi domains (mutant) - mouse<br />
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| **[[2ic4]] – hCFH 6-8 sushi domains (mutant) <br />
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| **[[2jgw]] – hCFH 7 sushi domain – NMR<br />
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| **[[2jgx]] – hCFH 7 sushi domain (mutant) <br />
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| **[[4b2r]] – hCFH 10-11 sushi domains - NMR <br />
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| **[[4b2s]] – hCFH 11-12 sushi domains - NMR <br />
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| **[[2kms]] – hCFH 12-13 sushi domains – NMR<br />
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| **[[1hfi]] – hCFH 15 sushi domain – NMR<br />
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| **[[1hfh]] – hCFH 15-16 sushi domains – NMR<br />
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| **[[2qfh]] – hCFH 16-20 sushi domains - NMR <br />
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| **[[3sw0]] – hCFH 18-20 sushi domains <br />
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| **[[2bzm]] – hCFH 19-20 sushi domains – NMR<br />
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| **[[3kzj]] – hCFH 19-20 sushi domains (mutant) – NMR<br />
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| **[[2g7i]] – hCFH 19-20 sushi domains <br />
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| **[[3kxv]], [[3r62]] – hCFH 19-20 sushi domains (mutant) <br />
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| *Complement factor H complexes
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| **[[2wii]] – hCFH 1-4 sushi domains + complement C3 <br />
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| **[[2w80]], [[2w81]], [[4ayd]], [[4aye]], [[4ayi]], [[4aym]] – hCFH 6-7 sushi domains + factor H binding protein <br />
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| **[[2uwn]], [[2v8e]] – hCFH 6-8 sushi domains + sucrose octasulfate <br />
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| **[[4k12]] – hCFH 9 sushi domain + choline binding protein A <br />
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| **[[3oxu]], [[4ont]], [[4zh1]] – hCFH 19-20 sushi domains + complement C3 <br />
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| **[[2xqw]] – hCFH 19-20 sushi domains (mutant) + complement C3 <br />
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| **[[4j38]] – hCFH 19-20 sushi domains (mutant) + outer surface protein E <br />
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| **[[4k12]] – hCFH 9 sushi domain + choline binding protein A <br />
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| **[[5nbq]] – hCFH + complement C3 α chain + outer surface protein<br />
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| **[[5o32]] – hCFH + hCFI + complement C3 α+β chains <br />
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| **[[5o35]] – hCFH + complement C3 α chain <br />
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| *Complement factor I
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| **[[2xrc]] – hCFI <br />
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| == References == | | == References == |
