Cysteinyl peptide Inhibitors of Bacillus cereus Zinc β-Lactamase
摘要:
Several cysteinyl peptides have been synthesised and shown to be reversible competitive inhibitors of the Bacillus cereus metallo-beta -lactamase. The pH dependence of pK(i) indicates that the thiol anion displaces hydroxide ion from the active site zinc(II). D,D-Peptides bind to the enzyme better than other diastereoisomers, which is compatible with the predicted stereochemistry of the active site. (C) 2001 Elsevier Science Ltd. All rights reserved.
Cysteinyl peptide Inhibitors of Bacillus cereus Zinc β-Lactamase
摘要:
Several cysteinyl peptides have been synthesised and shown to be reversible competitive inhibitors of the Bacillus cereus metallo-beta -lactamase. The pH dependence of pK(i) indicates that the thiol anion displaces hydroxide ion from the active site zinc(II). D,D-Peptides bind to the enzyme better than other diastereoisomers, which is compatible with the predicted stereochemistry of the active site. (C) 2001 Elsevier Science Ltd. All rights reserved.