Lineage for Species: Thermus thermophilus [TaxId: 274]

1. Root: SCOPe 2.08

2. Class b: All beta proteins [48724] (180 folds)

3. Fold b.40: OB-fold [50198] (17 superfamilies) barrel, closed or partly opened n=5, S=10 or S=8; greek-key

4. Superfamily b.40.5: Inorganic pyrophosphatase [50324] (2 families)

5. Family b.40.5.1: Inorganic pyrophosphatase [50325] (2 proteins) barrel, closed; n=5, S=8

6. Protein Inorganic pyrophosphatase [50326] (9 species) eukaryotic enzyme has additional secondary structures at both N- and C-termini

7. Species Thermus thermophilus [TaxId:274] [50330] (1 PDB entry)