Journal
TRENDS IN BIOCHEMICAL SCIENCES
Volume 35, Issue 10, Pages 584-591Publisher
ELSEVIER SCIENCE LONDON
DOI: 10.1016/j.tibs.2010.05.001
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Funding
- Royal Society of New Zealand [UOW0501]
- UK Biotechnology and Biological Sciences Research Council
- Royal Society
- US Air Force Office of Scientific Research
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The two established thermal properties of enzymes are their activation energy and their thermal stability, but experimental data do not match the expectations of these two properties. The recently proposed Equilibrium Model (EM) provides a quantitative explanation of enzyme thermal behaviour under reaction conditions by introducing an inactive (but not denatured) intermediate in rapid equilibrium with the active form. It was formulated as a mathematical model, and fits the known experimental data. Importantly, the EM gives rise to a number of new insights into the molecular basis of the temperature control of enzymes and their environmental adaptation and evolution, it is consistent with active site properties, and it has fundamental implications for enzyme engineering and other areas of biotechnology.
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