Lineage for Fold c.56: Phosphorylase/hydrolase-like
- Root: SCOP 1.65
Class c: Alpha and beta proteins (a/b) [51349] (121 folds) 
Fold c.56: Phosphorylase/hydrolase-like [53162] (6 superfamilies)
core: 3 layers, a/b/a ; mixed sheet of 5 strands: order 21354; strand 4 is antiparallel to the rest; contains crossover loops
Superfamilies:
c.56.1: HybD-like [53163] (2 families) 
the HybD fold coincides with the consensus core structure
c.56.2: Purine and uridine phosphorylases [53167] (1 family)
complex architecture; contains mixed beta-sheet of 8 strands, order 23415867, strands 3, 6 & 7 are antiparallel to the rest; and barrel, closed; n=5, S=8
c.56.3: Peptidyl-tRNA hydrolase [53178] (1 family) 
c.56.4: Pyrrolidone carboxyl peptidase (pyroglutamate aminopeptidase) [53182] (1 family) c.56.5: Zn-dependent exopeptidases [53187] (5 families)
core: mixed beta-sheet of 8 strands, order 12435867; strands 2, 6 & 7 are antiparallel to the rest
c.56.6: LigB subunit of an aromatic-ring-opening dioxygenase LigAB [53213] (1 family)
circular permutation of the common fold, most similar to the PNP fold
More info for Fold c.56: Phosphorylase/hydrolase-like
Timeline for Fold c.56: Phosphorylase/hydrolase-like:
- Fold c.56: Phosphorylase/hydrolase-like first appeared (with stable ids) in SCOP 1.55
- Fold c.56: Phosphorylase/hydrolase-like appears in SCOP 1.63
- Fold c.56: Phosphorylase/hydrolase-like appears in SCOP 1.67
- Fold c.56: Phosphorylase/hydrolase-like appears in the current release, SCOPe 2.08