Lineage for Species: Mycobacterium tuberculosis [TaxId: 83332]

1. Root: SCOPe 2.05

2. Class a: All alpha proteins [46456] (286 folds)

3. Fold a.25: Ferritin-like [47239] (6 superfamilies) core: 4 helices; bundle, closed, left-handed twist; 1 crossover connection

4. Superfamily a.25.4: PE/PPE dimer-like [140459] (2 families) (hetero)dimer of alpha-hairpin subunits similar to that of the half-ferritin family; no bound metals inside the bundle

5. Family a.25.4.2: PPE [140463] (2 proteins) Pfam PF00823; contains extra C-terminal alpha-hairpin, unlike the PE family subunit

6. Protein automated matches [256922] (1 species) not a true protein

7. Species Mycobacterium tuberculosis [TaxId:83332] [256923] (1 PDB entry)