Stereochemical studies of processing of D- and L-isomers of suicide substrates by an amino acid racemase from Pseudomonas striata
Abstract
Modest stereoselectivity (15–20% enantiomeric excess) is observed in the protonation of the aminoacrylate product that forms in kinetic competition with suicidal capture of the pyridoxal phosphate (PLP) cofactor by that aminoacrylate in the inactivation of a racemase (Pseudomonas striata) with O-acetylserines.