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Unexpectedly Fast Cis/Trans Isomerization of Xaa-Pro Peptide Bonds in Disulfide-Constrained Cyclic Peptides

✍ Scribed by Shi, Tiesheng; Spain, Stephen M.; Rabenstein, Dallas L.

Book ID
120393265
Publisher
American Chemical Society
Year
2004
Tongue
English
Weight
109 KB
Volume
126
Category
Article
ISSN
0002-7863

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The stability and kinetics of unfolding and refolding of the P167T mutant of the TEM-1 p-lactamase have been investigated as a function of guanidine hydrochloride concentration. The activity of the mutant enzyme was not significantly modified, which strongly suggests that the Glu166Thr167 peptide bo