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Proteins. 2002 Sep 1;48(4):611-7.

Mapping pathways of allosteric communication in GroEL by analysis of correlated mutations.

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  • 1Department of Structural Biology, Weizmann Institute of Science, Rehovot, Israel.


An interesting example of an allosteric protein is the chaperonin GroEL. It undergoes adenosine 5'-triphosphate-induced conformational changes that are reflected in binding of adenosine 5'-triphosphate with positive cooperativity within rings and negative cooperativity between rings. Herein, correlated mutations in chaperonins are analyzed to unravel routes of allosteric communication in GroEL and in its complex with its co-chaperonin GroES. It is shown that analysis of correlated mutations in the chaperonin family can provide information about pathways of allosteric communication within GroEL and between GroEL and GroES. The results are discussed in the context of available structural, genetic, and biochemical data concerning short- and long-range interactions in the GroE system.

Copyright 2002 Wiley-Liss, Inc.

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