1.2.3.1 | an aldehyde + H2O + O2 = a carboxylate + H2O2 |
base catalyzed mechanism. Residue E1265 acts as an active site base that abstracts a proton from the Mo-OH group, which in turn undertakes a nucleophilic attack on the substrate benzaldehyde. After hydride transfer to the Mo= S group, the initial intermediate breaks down, with the transient formation of a paramagnetic MoV species, followed by displacement of product by a water molecule to return to the starting LMoVIOS(OH) state. The roles of residues Met884 and Val806 are stabilization of substrate binding |
700901 |