Lineage for Species: Human (Homo sapiens) [TaxId: 9606]

1. Root: SCOPe 2.08

2. Class a: All alpha proteins [46456] (290 folds)

3. 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

4. Superfamily a.102.4: Terpenoid cyclases/Protein prenyltransferases [48239] (5 families)

5. Family a.102.4.4: Complement components [48251] (4 proteins) probably related to other families, but has no known enzymatic activity

6. Protein C4adg fragment of complement factor C4a [81859] (1 species)

7. Species Human (Homo sapiens) [TaxId:9606] [81860] (1 PDB entry)