PMID:11179895

Citation	Grantcharova, V, Alm, EJ, Baker, D and Horwich, AL (2001) Mechanisms of protein folding. Curr. Opin. Struct. Biol. 11:70-82
Abstract	The strong correlation between protein folding rates and the contact order suggests that folding rates are largely determined by the topology of the native structure. However, for a given topology, there may be several possible low free energy paths to the native state and the path that is chosen (the lowest free energy path) may depend on differences in interaction energies and local free energies of ordering in different parts of the structure. For larger proteins whose folding is assisted by chaperones, such as the Escherichia coli chaperonin GroEL, advances have been made in understanding both the aspects of an unfolded protein that GroEL recognizes and the mode of binding to the chaperonin. The possibility that GroEL can remove non-native proteins from kinetic traps by unfolding them either during polypeptide binding to the chaperonin or during the subsequent ATP-dependent formation of folding-active complexes with the co-chaperonin GroES has also been explored.
Links	PubMed
Keywords	Adenosine Triphosphate/metabolism; Chaperonins; DNA Mutational Analysis; Kinetics; Models, Chemical; Models, Molecular; Protein Binding; Protein Denaturation; Protein Folding; Thermodynamics
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