Fold: Ribokinase-like

core: 3 layers: a/b/a; mixed beta-sheet of 8 strands, order 21345678, strand 7 is antiparallel to the rest
potential superfamily: members of this fold have similar functions but different ATP-binding sites

Lineage:

1. Root: scop
2. Class: Alpha and beta proteins (a/b)
   Mainly parallel beta sheets (beta-alpha-beta units)
3. Fold: Ribokinase-like
   core: 3 layers: a/b/a; mixed beta-sheet of 8 strands, order 21345678, strand 7 is antiparallel to the rest
   potential superfamily: members of this fold have similar functions but different ATP-binding sites

Superfamilies:

1. Ribokinase-like (2)
   has extra strand located between strands 2 and 3
2. MurD-like peptide ligases, catalytic domain (2)
   has extra strand located between strands 1 and 2