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Statistical Mechanics of Allosteric Enzymes.


ABSTRACT: The concept of allostery in which macromolecules switch between two different conformations is a central theme in biological processes ranging from gene regulation to cell signaling to enzymology. Allosteric enzymes pervade metabolic processes, yet a simple and unified treatment of the effects of allostery in enzymes has been lacking. In this work, we take a step toward this goal by modeling allosteric enzymes and their interaction with two key molecular players-allosteric regulators and competitive inhibitors. We then apply this model to characterize existing data on enzyme activity, comment on how enzyme parameters (such as substrate binding affinity) can be experimentally tuned, and make novel predictions on how to control phenomena such as substrate inhibition.

SUBMITTER: Einav T 

PROVIDER: S-EPMC5452729 | biostudies-literature | 2016 Jul

REPOSITORIES: biostudies-literature

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Statistical Mechanics of Allosteric Enzymes.

Einav Tal T   Mazutis Linas L   Phillips Rob R  

The journal of physical chemistry. B 20160429 26


The concept of allostery in which macromolecules switch between two different conformations is a central theme in biological processes ranging from gene regulation to cell signaling to enzymology. Allosteric enzymes pervade metabolic processes, yet a simple and unified treatment of the effects of allostery in enzymes has been lacking. In this work, we take a step toward this goal by modeling allosteric enzymes and their interaction with two key molecular players-allosteric regulators and competi  ...[more]

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