Fold: Flavodoxin-like [52171]
3 layers, a/b/a; parallel beta-sheet of 5 strand, order 21345
Superfamily: Class I glutamine amidotransferase-like [52317]
conserved positions of the oxyanion hole and catalytic nucleophile; different constituent families contain different additional structures uperfamily
A4 beta-galactosidase middle domain [82351] (1) probable non-catalytic branch of the class I GAT family; overall fold is very similar but the active site is not conserved
DJ-1/PfpI [52325] (9) contains a catalytic triad or dyad different from the class I GAT triad