Fig 4. β-sheet arrangement around the catalytic site.

Overlay of the β-strands around the catalytic metal of molinate hydrolase (pink) and N-acetyl glucosamine-6-phosphate deacetylase (green; PDB entry: 1o126), an enzyme that shows the classic β-barrel core (green) of the amidohydrolase superfamily; the usual β-strand numbering of the β-barrel is presented. The C_α of the metal coordinating residues were used for structure superposition. Catalytic metals are shown as spheres (zinc orange; iron yellow).