Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

ChainsDomain InfoClassFoldSuperfamilyFamilyDomainSpeciesProvenance Source (Version)
Ad3cu7aa All alpha proteins Anaphylotoxins (complement system) Anaphylotoxins (complement system) Anaphylotoxins (complement system) C5a anaphylotoxin (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Ad3cu7ae All alpha proteins alpha/alpha toroid Terpenoid cyclases/Protein prenyltransferases Complement components Thio-ester containing domain (TED) from Complement C5 (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Ad3cu7a8 All beta proteins Immunoglobulin-like beta-sandwich Macroglobulin Alpha-macroglobulin receptor domain Complement C5 MG8 (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Ad3cu7a1 All beta proteins Immunoglobulin-like beta-sandwich Macroglobulin Complement C3 MG1-like Complement C5 MG1 (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Ad3cu7a2 All beta proteins Immunoglobulin-like beta-sandwich Macroglobulin Complement C3 MG2-like Complement C5 MG2 (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Ad3cu7a3 All beta proteins Immunoglobulin-like beta-sandwich Macroglobulin Complement C3 MG3-like Complement C5 MG3 (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Ad3cu7a4 All beta proteins Immunoglobulin-like beta-sandwich Macroglobulin Complement C3 MG4-like Complement C5 MG4 (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Ad3cu7a5 All beta proteins Immunoglobulin-like beta-sandwich Macroglobulin Complement C3 MG5-like Complement C5 MG5 (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Ad3cu7a6 All beta proteins Immunoglobulin-like beta-sandwich Macroglobulin Complement C3 MG6-like Complement C5 MG6 (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Ad3cu7a7 All beta proteins Immunoglobulin-like beta-sandwich Macroglobulin Complement C3 MG7-like Complement C5 MG7 (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Ad3cu7ad All beta proteins CUB-like Complement system CUB domain Complement system CUB domain Complement C5 CUB domain (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Ad3cu7af All beta proteins OB-fold TIMP-like Netrin-like domain (NTR/C345C module) Complement C5 domain (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Ad3cu7a9 Small proteins Complement C3 linker domain-like Complement C3 linker domain-like Complement C3 linker domain-like Complement C5 linker domain (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Ad3cu7ab Peptides Complement system alpha-prime linker Complement system alpha-prime linker Complement system alpha-prime linker Complement C5 alpha-prime linker (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Ad3cu7ac Peptides Complement system anchor region Complement system anchor region Complement system anchor region Complement C5 anchor region (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Bd3cu7ba All alpha proteins Anaphylotoxins (complement system) Anaphylotoxins (complement system) Anaphylotoxins (complement system) C5a anaphylotoxin (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Bd3cu7be All alpha proteins alpha/alpha toroid Terpenoid cyclases/Protein prenyltransferases Complement components Thio-ester containing domain (TED) from Complement C5 (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Bd3cu7b8 All beta proteins Immunoglobulin-like beta-sandwich Macroglobulin Alpha-macroglobulin receptor domain Complement C5 MG8 (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Bd3cu7b1 All beta proteins Immunoglobulin-like beta-sandwich Macroglobulin Complement C3 MG1-like Complement C5 MG1 (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Bd3cu7b2 All beta proteins Immunoglobulin-like beta-sandwich Macroglobulin Complement C3 MG2-like Complement C5 MG2 (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Bd3cu7b3 All beta proteins Immunoglobulin-like beta-sandwich Macroglobulin Complement C3 MG3-like Complement C5 MG3 (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Bd3cu7b4 All beta proteins Immunoglobulin-like beta-sandwich Macroglobulin Complement C3 MG4-like Complement C5 MG4 (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Bd3cu7b5 All beta proteins Immunoglobulin-like beta-sandwich Macroglobulin Complement C3 MG5-like Complement C5 MG5 (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Bd3cu7b6 All beta proteins Immunoglobulin-like beta-sandwich Macroglobulin Complement C3 MG6-like Complement C5 MG6 (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Bd3cu7b7 All beta proteins Immunoglobulin-like beta-sandwich Macroglobulin Complement C3 MG7-like Complement C5 MG7 (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Bd3cu7bd All beta proteins CUB-like Complement system CUB domain Complement system CUB domain Complement C5 CUB domain (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Bd3cu7b9 Small proteins Complement C3 linker domain-like Complement C3 linker domain-like Complement C3 linker domain-like Complement C5 linker domain (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Bd3cu7bb Peptides Complement system alpha-prime linker Complement system alpha-prime linker Complement system alpha-prime linker Complement C5 alpha-prime linker (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Bd3cu7bc Peptides Complement system anchor region Complement system anchor region Complement system anchor region Complement C5 anchor region (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilyTIMP-like 8044187 3000488 SCOP2B (2022-06-29)
ASCOP2B SuperfamilyAnaphylotoxins (complement system) 8037606 3000387 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyAnaphylotoxins (complement system) 8037606 3000387 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
ANTRe3cu7A3 A: beta barrelsX: OB-foldH: TIMP-like (From Topology)T: TIMP-likeF: NTRECOD (1.6)
AEUF07662e3cu7A11 A: beta sandwichesX: jelly-rollH: Spermadhesin, CUB domain (From Topology)T: Spermadhesin, CUB domainF: EUF07662ECOD (1.6)
AA2M_N_1e3cu7A9 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: A2M_N_1ECOD (1.6)
AKOG1366_2nd_1e3cu7A5 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: KOG1366_2nd_1ECOD (1.6)
AMG4e3cu7A7 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: MG4ECOD (1.6)
AKOG1366_1ste3cu7A10 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: KOG1366_1stECOD (1.6)
AANATO,A2M_N_2e3cu7A8 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: ANATO,A2M_N_2ECOD (1.6)
AA2M_Ce3cu7A6 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: A2M_CECOD (1.6)
AA2M_Ne3cu7A12 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: A2M_NECOD (1.6)
AA2M_recepe3cu7A4 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Common fold of diphtheria toxin/transcription factors/cytochrome fF: A2M_recepECOD (1.6)
AA2M_compe3cu7A2 A: alpha superhelicesX: Repetitive alpha hairpinsH: alpha/alpha toroid (From Topology)T: alpha/alpha toroidF: A2M_compECOD (1.6)
AANATOe3cu7A1 A: few secondary structure elementsX: Anaphylotoxins (complement system) (From Topology)H: Anaphylotoxins (complement system) (From Topology)T: Anaphylotoxins (complement system)F: ANATOECOD (1.6)
BEUF07662e3cu7B20 A: beta sandwichesX: jelly-rollH: Spermadhesin, CUB domain (From Topology)T: Spermadhesin, CUB domainF: EUF07662ECOD (1.6)
BA2M_N_1e3cu7B17 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: A2M_N_1ECOD (1.6)
BKOG1366_2nd_1e3cu7B13 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: KOG1366_2nd_1ECOD (1.6)
BMG4e3cu7B15 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: MG4ECOD (1.6)
BKOG1366_1ste3cu7B18 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: KOG1366_1stECOD (1.6)
BANATO,A2M_N_2e3cu7B16 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: ANATO,A2M_N_2ECOD (1.6)
BA2M_Ce3cu7B14 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: A2M_CECOD (1.6)
BA2M_Ne3cu7B21 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: A2M_NECOD (1.6)
BA2M_recepe3cu7B12 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Common fold of diphtheria toxin/transcription factors/cytochrome fF: A2M_recepECOD (1.6)
BA2M_compe3cu7B5 A: alpha superhelicesX: Repetitive alpha hairpinsH: alpha/alpha toroid (From Topology)T: alpha/alpha toroidF: A2M_compECOD (1.6)
BANATOe3cu7B19 A: few secondary structure elementsX: Anaphylotoxins (complement system) (From Topology)H: Anaphylotoxins (complement system) (From Topology)T: Anaphylotoxins (complement system)F: ANATOECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A2.60.40.1930 Mainly Beta Sandwich Immunoglobulin-like Macroglobulin (MG2) domainCATH (4.3.0)
A2.60.40.1940 Mainly Beta Sandwich Immunoglobulin-like CATH (4.3.0)
A2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (4.3.0)
A2.20.130.20 Mainly Beta Single Sheet S-adenosyl-L-methionine-dependent methyltransferases CATH (4.3.0)
A6.10.270.10 Special Helix non-globular Pheromone ER-1 CATH (4.3.0)
A1.20.91.20 Mainly Alpha Up-down Bundle Influenza Virus Matrix Protein Chain A, domain 1CATH (4.3.0)
A2.60.120.1540 Mainly Beta Sandwich Jelly Rolls CATH (4.3.0)
A1.50.10.20 Mainly Alpha Alpha/alpha barrel Glycosyltransferase CATH (4.3.0)
A2.60.40.690 Mainly Beta Sandwich Immunoglobulin-like Alpha-macroglobulin, receptor-binding domainCATH (4.3.0)
A2.40.50.120 Mainly Beta Beta Barrel OB fold (Dihydrolipoamide Acetyltransferase, E2P) CATH (4.3.0)
B2.60.40.1930 Mainly Beta Sandwich Immunoglobulin-like Macroglobulin (MG2) domainCATH (4.3.0)
B2.60.40.1940 Mainly Beta Sandwich Immunoglobulin-like CATH (4.3.0)
B2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (4.3.0)
B2.20.130.20 Mainly Beta Single Sheet S-adenosyl-L-methionine-dependent methyltransferases CATH (4.3.0)
B1.20.91.20 Mainly Alpha Up-down Bundle Influenza Virus Matrix Protein Chain A, domain 1CATH (4.3.0)
B2.60.120.1540 Mainly Beta Sandwich Jelly Rolls CATH (4.3.0)
B1.50.10.20 Mainly Alpha Alpha/alpha barrel Glycosyltransferase CATH (4.3.0)
B2.60.40.690 Mainly Beta Sandwich Immunoglobulin-like Alpha-macroglobulin, receptor-binding domainCATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, B
PF17790Macroglobulin domain MG1 (MG1)Macroglobulin domain MG1This entry represents the N-terminal macroglobulin domain found in complement proteins C3, C4 and C5.Domain
A, B
PF01821Anaphylotoxin-like domain (ANATO)Anaphylotoxin-like domainC3a, C4a and C5a anaphylatoxins are protein fragments generated enzymatically in serum during activation of complement molecules C3, C4, and C5. They induce smooth muscle contraction. These fragments are homologous to a three-fold repeat in fibulins. ...C3a, C4a and C5a anaphylatoxins are protein fragments generated enzymatically in serum during activation of complement molecules C3, C4, and C5. They induce smooth muscle contraction. These fragments are homologous to a three-fold repeat in fibulins.
Domain
A, B
PF17791Macroglobulin domain MG3 (MG3)Macroglobulin domain MG3This entry corresponds to the MG3 domain found in complement components C3, C4 and C5.Domain
A, B
PF01835MG2 domain (MG2)MG2 domainThis is the MG2 (macroglobulin) domain of alpha-2-macroglobulin in eukaryotes [1]. Alpha-2-macroglobulins (A2Ms) are plasma proteins that trap and inhibit a broad range of proteases and are major components of the eukaryotic innate immune system. How ...This is the MG2 (macroglobulin) domain of alpha-2-macroglobulin in eukaryotes [1]. Alpha-2-macroglobulins (A2Ms) are plasma proteins that trap and inhibit a broad range of proteases and are major components of the eukaryotic innate immune system. However, A2M-like proteins were identified in pathogenically invasive bacteria and species that colonize higher eukaryotes. This domain is found in eukaryotic and bacterial proteins. In human A2Ms, this domain is termed macroglobulin-like (MG) domain 2 and in Salmonella enterica ser A2Ms, this is domain 4 [2] [3].
Domain
A, B
PF00207Alpha-2-macroglobulin family (A2M)Alpha-2-macroglobulin family- Family
A, B
PF01759UNC-6/NTR/C345C module (NTR)UNC-6/NTR/C345C moduleSequence similarity between netrin UNC-6 and C345C complement protein family members, and hence the existence of the UNC-6 module, was first reported in [1]. Subsequently, many additional members of the family were identified on the basis of sequence ...Sequence similarity between netrin UNC-6 and C345C complement protein family members, and hence the existence of the UNC-6 module, was first reported in [1]. Subsequently, many additional members of the family were identified on the basis of sequence similarity between the C-terminal domains of netrins, complement proteins C3, C4, C5, secreted frizzled-related proteins, and type I pro-collagen C-proteinase enhancer proteins (PCOLCEs), which are homologous with the N-terminal domains of tissue inhibitors of metalloproteinases (TIMPs). The TIMPs are classified as a separate family in Pfam (Pfam:PF00965) [2]. This expanded domain family has been named as the NTR module [2].
Domain
A, B
PF07678A-macroglobulin TED domain (TED_complement)A-macroglobulin TED domain- Repeat
A, B
PF21309Complement component 5, CUB domain (C5_CUB)Complement component 5, CUB domainComplement component 5 (C5) is a component of the lytic complex consisting of factors C5-C9 which attack bacterial cell membranes. This entry represents the CUB domain [1-5].Domain
A, B
PF07677A-macroglobulin receptor binding domain (A2M_recep)A-macroglobulin receptor binding domainThis family includes the receptor binding domain region of the alpha-2-macroglobulin family.Domain
A, B
PF17789Macroglobulin domain MG4 (MG4)Macroglobulin domain MG4This domain is MG4 found in complement C3 and C5 proteins.Domain
A, B
PF07703Alpha-2-macroglobulin bait region domain (A2M_BRD)Alpha-2-macroglobulin bait region domainAlpha-2-macroglobulins (A2Ms) are plasma proteins that trap and inhibit a broad range of proteases and are major components of the eukaryotic innate immune system. However, A2M-like proteins were identified in pathogenically invasive bacteria and spe ...Alpha-2-macroglobulins (A2Ms) are plasma proteins that trap and inhibit a broad range of proteases and are major components of the eukaryotic innate immune system. However, A2M-like proteins were identified in pathogenically invasive bacteria and species that colonize higher eukaryotes. This domain is found in eukaryotic and bacterial proteins. In human A2Ms, this domain encompasses macroglobulin-like domain MG5 and 6 including bait region. In Salmonella enterica ser A2Ms, this domain encompasses MG7 and MG8 including the bait region [1] [2]. The Bait region is cleaved by proteases, followed by a large conformational change that blocks the target protease within a cage-like complex. This model of protease entrapment is recognised as the Venus flytrap mechanism [1].
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, B
Complement C5