Enzymology IN VIVO - 1st Edition - ISBN: 9781559388443, 9780080876931

Enzymology IN VIVO, Volume 11

1st Edition

Authors: K.M. Brindle
eBook ISBN: 9780080876931
Imprint: Elsevier Science
Published Date: 1st April 1995


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Table of Contents

Contents. List of Contributors. Preface (K.M. Brindle). Metabolic Channeling in Organized Enzyme Systems: Experiments and Models (P. Mendes, D.B. Kell, and G.R. Welch). Metabolic Control Analysis in Theory and Practice (A. Cornish-Bowden). Experimental Approaches to Studying Enzymes IN VIVO: The Application of Nuclear Magnetic Resonance Methods to Genetically Manipulated Organisms. (S. Williams, A.M. Fulton, and K.M. Brindle). Glycolysis IN VIVO: Fluorescence Microscopy as a Tool for Studying Enzyme Organization in Living Cells (L. Pagliaro). The Cooperative Behavior of Krebs Tricarboxylic Acid Cycle Enzymes (P.A. Srere, C.R. Malloy, A. D. Sherry, and B. Sumegi). NMR Studies of Erythrocyte Metabolism (H.A. Berthon and P.W. Kuchel). Studies of Physiological Control of ATP Synthesis (K.F. LaNoue and c. Doumen). Hepatic High Energy Phosphate Metabolism in Transgenic Livers Expressing Creative Kinase as Revealed by ³¹P NMR (A.P. Koretsky, K.R. Miller, and J.M. Halow). Index.


This volume describes some of the approaches that have been used to study enzymes in vivo. Metabolic control analysis provides a relatively simple framework with which to relate flux in a metabolic pathway to the kinetic properties of the component enzymes. More importantly it shows us how the importance of an enzyme in controlling flux in a pathway can be quantitated experimentally from measurements on the intact tissue. Fluorescence microscopy and NMR are two spectroscopic techniques which can be used to monitor, non-invasively, metabolite levels, metabolic fluxes and enzyme localization and mobility in intact biological systems. The potential of NMR for investigating the properties of enzymes in vivo has been greatly enhanced by using the technique in conjunction with molecular genetic method for changing the levels and properties of specific enzymes in the intact cell.
Control of metabolism is regarded by some as a dead subject, with little new to learn. While it is true that the chemistry of the major metabolic pathways have been fully elucidated, our understanding of how they are controlled in the cell is still rather limited. Of particular interest is the emerging evidence for a high degree of spatial organization of the supposedly 'soluble' enzymes in the cytosol and the mitochondrial matrix. Much is still to be learnt on how this organization is effected and what influence it has on control of metabolic flux. If this volume excites some interest in this area of research and, furthermore, demonstrates that these problems are eminently addressable using the new techniques which are being developed, then it will have served a useful purpose.


© Elsevier Science 1995
Elsevier Science
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About the Authors

K.M. Brindle Author

Affiliations and Expertise

Department of Biochemistry, Unviersity of Cambridge, Cambridge, England