Fold: (Phosphotyrosine protein) phosphatases II

core: 3 layers, a/b/a; parallel beta-sheet of 4 strands, order 1432

Lineage:

1. Root: scop
2. Class: Alpha and beta proteins (a/b)
   Mainly parallel beta sheets (beta-alpha-beta units)
3. Fold: (Phosphotyrosine protein) phosphatases II
   core: 3 layers, a/b/a; parallel beta-sheet of 4 strands, order 1432

Superfamilies:

1. (Phosphotyrosine protein) phosphatases II (3)
   share with the family I the common active site structure with a circularly permuted topology