Fold: S-adenosylmethionine synthetase

duplication: consists of 3 similar intertwined domains
structural repeat: beta-alpha-beta(2)-alpha-beta; two layers, alpha/beta

Lineage:

1. Root: scop
2. Class: Alpha and beta proteins (a+b)
   Mainly antiparallel beta sheets (segregated alpha and beta regions)
3. Fold: S-adenosylmethionine synthetase
   duplication: consists of 3 similar intertwined domains
   structural repeat: beta-alpha-beta(2)-alpha-beta; two layers, alpha/beta

Superfamilies:

1. S-adenosylmethionine synthetase (1)
   1. S-adenosylmethionine synthetase (2)
      1. S-adenosylmethionine synthetase
         synonym: methionine adenosyltransferase, MAT
         1. Escherichia coli (7)
         2. Rat (Rattus norvegicus) (1)