Fold: OB-fold

barrel, closed or partly opened n=5, S=10 or S=8; greek-key

Lineage:

1. Root: scop
2. Class: All beta proteins
3. Fold: OB-fold
   barrel, closed or partly opened n=5, S=10 or S=8; greek-key

Superfamilies:

1. Staphylococcal nuclease (1)
2. Bacterial enterotoxins (2)
3. TIMP-like (2)
4. Heme chaperone CcmE (1)
5. Tail-associated lysozyme gp5, N-terminal domain (1)
6. Nucleic acid-binding proteins (10)
7. Inorganic pyrophosphatase (1)
8. MOP-like (3)
9. CheW-like (1)