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Biochemistry. 2002 Dec 17;41(50):14637-44.

Proline cis-trans isomerization and protein folding.

Author information

1
Baker Laboratory of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853-1301, USA.

Abstract

Proline cis-trans isomerization plays a key role in the rate-determining steps of protein folding. The energetic origin of this isomerization process is summarized, and the folding and unfolding of disulfide-intact bovine pancreatic ribonuclease A is used as an example to illustrate the kinetics and structural features of conformational changes from the heterogeneous unfolded state (consisting of cis and trans isomers of X-Pro peptide groups) to the native structure in which only one set of proline isomers is present.

PMID:
12475212
DOI:
10.1021/bi020574b
[Indexed for MEDLINE]

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