Chapter 13. Mechanism-Based Inhibition

  1. Alejandro G. Marangoni
  1. Leslie J. Copp

Published Online: 13 MAR 2003

DOI: 10.1002/0471267295.ch13

Enzyme Kinetics: A Modern Approach

Enzyme Kinetics: A Modern Approach

How to Cite

Copp, L. J. (2003) Mechanism-Based Inhibition, in Enzyme Kinetics: A Modern Approach (ed A. G. Marangoni), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/0471267295.ch13

Editor Information

  1. Department of Food Science, University of Guelph, Canada

Author Information

  1. Department of Food Science, University of Guelph, Canada

Publication History

  1. Published Online: 13 MAR 2003
  2. Published Print: 1 NOV 2002

ISBN Information

Print ISBN: 9780471159858

Online ISBN: 9780471267294

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Keywords:

  • catalytic inhibition;
  • suicide inhibition;
  • irreversible inhibition;
  • inactivation;
  • alternate substrate inhibition;
  • acyl-enzyme

Summary

This chapter describes both reversible and irreversible mechanism-based inhibition of enzymes. Mechanism-based inhibitors require the inhibitor to be processed catalytically by the enzyme for inhibitory activity. Methods for determining kinetic parameters, such as rates of inactivation and reactivation, the partition ratio and dissociation constants for inhibition or inactivation are described. Suggestions for the determination of products and verifying the nature of the inhibition are also discussed. The various methods are illustrated with several examples of Human Leukocyte mechanism-based inhibitors.