Probing the cytochrome c' folding landscape.

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Probing the cytochrome c' folding landscape. Abstract Text:

Ekaterina V Pletneva,Ziqing Zhao,Tetsunari Kimura,Krastina V Petrova,Harry B Gray,Jay R Winkler,Ekaterina V Pletneva,Ziqing Zhao,Tetsunari Kimura,Krastina V Petrova,Harry B Gray,Jay R Winkler,Ekaterina V Pletneva,Ziqing Zhao,Tetsunari Kimura,Krastina V Petrova,Harry B Gray,Jay R Winkler,

The folding kinetics of R. palustris cytochrome c' (cyt c') have been monitored by heme absorption and native Trp72 fluorescence at pH 5. The Trp72 fluorescence burst signal suggests early compaction of the polypeptide ensemble. Analysis of heme transient absorption spectra reveals deviations from two-state behavior, including a prominent slow phase that is accelerated by the prolyl isomerase cyclophilin. A nonnative proline configuration (Pro21) likely interferes with the formation of the helical bundle surrounding the heme.

Probing the cytochrome c' folding landscape. Publishing Authors By Initials

EV Pletneva,Z Zhao,T Kimura,KV Petrova,HB Gray,JR Winkler,EV Pletneva,Z Zhao,T Kimura,KV Petrova,HB Gray,JR Winkler,EV Pletneva,Z Zhao,T Kimura,KV Petrova,HB Gray,JR Winkler,

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Probing the cytochrome c' folding landscape. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of inorganic biochemistry

VOLUME: 101

Page Numbers: 1768-75

Journal Abbreviation: J. Inorg. Biochem.

ISSN: 0162-0134

DAY: 21

MONTH: 06

YEAR: 2007

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LANGUAGE: eng

NlmUniqueID: 7905788

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AFFILIATION: Beckman Institute, California Institute of Technology, 1200 E. California Blvd., Pasadena, CA 91125, USA.

Country: United States

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MEDLINETA: J Inorg Biochem

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