Fold: Tryptophan synthase beta subunit-like PLP-dependent enzymes

consists of two similar domains related by pseudodyad; duplication
core: 3 layers, a/b/a; parallel beta-sheet of 4 strands, order 3214

Lineage:

1. Root: scop
2. Class: Alpha and beta proteins (a/b)
   Mainly parallel beta sheets (beta-alpha-beta units)
3. Fold: Tryptophan synthase beta subunit-like PLP-dependent enzymes
   consists of two similar domains related by pseudodyad; duplication
   core: 3 layers, a/b/a; parallel beta-sheet of 4 strands, order 3214

Superfamilies:

1. Tryptophan synthase beta subunit-like PLP-dependent enzymes (1)
   1. Tryptophan synthase beta subunit-like PLP-dependent enzymes (4)
      1. Tryptophan synthase, beta-subunit
         1. Salmonella typhimurium (21)
      2. O-acetylserine sulfhydrylase (Cystein synthase)
         1. Salmonella typhimurium (3)
      3. Threonine deaminase N-terminal domain
         1. Escherichia coli (1)
      4. 1-aminocyclopropane-1-carboxylate deaminase
         1. Yeast (Hansenula saturnus) (1)