Identification and characterisation of shunt metabolites from isopenicillin N synthase
作者:Jack E. Baldwin、Robert M. Adlington、Mark Bradley、William J. Norris、Nicholas J. Turner、Akira Yoshida
DOI:10.1039/c39880001125
日期:——
[(5S)-5-amino-5-carboxypentanoyl]-L-[3-13C]cysteinyl-D-[15N,3-2H]valine with isopenicillinNsynthase (IPNS) resulted in the observation of a ‘shuntmetabolite’, which we believe is formed from the collapse of an enzyme-bound monocyclic β-lactam intermediate, and which from chemical studies has been shown not to be derived from the decomposition of a free thiol monocyclic β-lactam.