Pac Symp Biocomput
August 1999
Co-chaperonins from diverse organisms exhibit mobile loops which fold into a beta hairpin conformation upon binding to the chaperonin. GroES, Gp31, and human Hsp10 mobile loops exhibit a preference for the beta hairpin conformation in the free co-chaperonins, and the conformational dynamics of the human Hsp10 mobile loop appear to be restricted by nascent hairpin formation. Backbone conformational entropy must weigh against binding of co-chaperonins to chaperonins, and thus the conformational preferences of the loops may strongly influence chaperonin-binding affinity.
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