Class a: All alpha proteins [46456] (284 folds) |
Fold a.102: alpha/alpha toroid [48207] (6 superfamilies) multihelical; up to seven alpha-hairpins are arranged in closed circular array; there may be sequence similarities between different superfamilies |
Superfamily a.102.4: Terpenoid cyclases/Protein prenyltransferases [48239] (4 families) |
Family a.102.4.4: Complement components [48251] (3 proteins) probably related to other families, but has no known enzymatic activity |
C3D, a C3 fragment and ligand for complement receptor 2 [48252] (2 species) |
Species Human (Homo sapiens) [TaxId:9606] [48253] (8 PDB entries) |
Species Norway rat (Rattus norvegicus) [TaxId:10116] [48254] (2 PDB entries) |
C4adg fragment of complement factor C4a [81859] (1 species) |
Species Human (Homo sapiens) [TaxId:9606] [81860] (1 PDB entry) |
automated matches [190371] (1 species) not a true protein |
Species Human (Homo sapiens) [TaxId:9606] [187209] (3 PDB entries) |
Timeline for Family a.102.4.4: Complement components: