Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AEUF07664e2pn5A2 A: beta sandwichesX: jelly-rollH: Spermadhesin, CUB domain (From Topology)T: Spermadhesin, CUB domainF: EUF07664ECOD (1.6)
AA2M_N_1e2pn5A4 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: A2M_N_1ECOD (1.6)
ADUF4469e2pn5A9 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: DUF4469ECOD (1.6)
AMG4e2pn5A10 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: MG4ECOD (1.6)
AKOG1366_2nde2pn5A7 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: KOG1366_2ndECOD (1.6)
AA2M_Ce2pn5A6 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: A2M_CECOD (1.6)
AA2M_Ne2pn5A5 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: A2M_NECOD (1.6)
AA2M_N_2e2pn5A8 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: A2M_N_2ECOD (1.6)
AA2M_recepe2pn5A3 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Common fold of diphtheria toxin/transcription factors/cytochrome fF: A2M_recepECOD (1.6)
AA2M_comp_3e2pn5A1 A: alpha superhelicesX: Repetitive alpha hairpinsH: alpha/alpha toroid (From Topology)T: alpha/alpha toroidF: A2M_comp_3ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A2.60.40.2950 Mainly Beta Sandwich Immunoglobulin-like CATH (4.3.0)
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)
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)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF17791Macroglobulin domain MG3 (MG3)Macroglobulin domain MG3This entry corresponds to the MG3 domain found in complement components C3, C4 and C5.Domain
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
PF00207Alpha-2-macroglobulin family (A2M)Alpha-2-macroglobulin family- Family
PF07678A-macroglobulin TED domain (TED_complement)A-macroglobulin TED domain- Repeat
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
PF21412TEP1, second CUB domain (TEP1_CUB2)TEP1, second CUB domainThioester-containing protein 1 (TEP1) is a central component in the innate immune response of Anopheles gambiae to Plasmodium infection. TEP1 has a series of eight macroglobulin (MG) domains and the beta-sheet CUB domain which is flanking the alpha- ...Thioester-containing protein 1 (TEP1) is a central component in the innate immune response of Anopheles gambiae to Plasmodium infection. TEP1 has a series of eight macroglobulin (MG) domains and the beta-sheet CUB domain which is flanking the alpha-helical TED domain. The CUB domain can be divided in two sections, one at the N-terminal and the second at the C-terminal of the TED domain. This entry represents the second part of the CUB domain [1,2].
Domain
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
PF17789Macroglobulin domain MG4 (MG4)Macroglobulin domain MG4This domain is MG4 found in complement C3 and C5 proteins.Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
Thioester-containing protein I