Fold: Molybdemum cofactor-binding domain

beta(2)-alpha-beta-alpha-beta; 2 layers: a/b; mixed sheet: order 1243: crossing loops

Lineage:

1. Root: scop
2. Class: Alpha and beta proteins (a+b)
   Mainly antiparallel beta sheets (segregated alpha and beta regions)
3. Fold: Molybdemum cofactor-binding domain
   beta(2)-alpha-beta-alpha-beta; 2 layers: a/b; mixed sheet: order 1243: crossing loops

Superfamilies:

1. Molybdemum cofactor-binding domain (1)
   duplication: consists of 4 structural repeats arranged in 2 lobes
   contains one left-hand beta-alpha-beta unit per lobe
   1. Molybdemum cofactor-binding domain (5)
      1. Aldehyde oxidoreductase
         1. Desulfovibrio gigas (1)
         2. Desulfovibrio desulfuricans (1)
      2. Xanthine oxidase, C-terminal domain
         1. Cow (Bos taurus) (2)
      3. Carbon monoxide (CO) dehydrogenase molybdoprotein
         1. Pseudomonas carboxydovorans (1)
         2. Hydrogenophaga pseudoflava (2)