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.24: Four-helical up-and-down bundle [47161] (29 superfamilies) core: 4 helices; bundle, closed or partly opened, left-handed twist; up-and-down

4. Superfamily a.24.8: Proteasome activator [47216] (1 family)

5. Family a.24.8.1: Proteasome activator [47217] (3 proteins)

6. Protein Proteasome activator reg(alpha) [47218] (1 species) The structure of the proteasome complex with this protein from (Trypanosoma brucei) is available (1fnt); however, PDB entry 1FNT designates protein chains by both upper case and lower case letters creating problems with its processing and presentation; the proteasome activator pa26 chains are designated by lower case letters (c;d;e;f;g;h;i;j;k;l;m;n;o;p)

7. Species Human (Homo sapiens) [TaxId:9606] [47219] (1 PDB entry)