Partially folded conformations in the folding pathway of bovine carbonic anhydrase II: A fluorescence spectroscopic analysis

被引：0

作者：

Bushmarina, NA

Kuznetsova, IM

Biktashev, AG

Turoverov, KK

Uversky, VN

机构：

[1] Russian Acad Sci, Inst Cytol, St Petersburg 194064, Russia

[2] Univ Calif Santa Cruz, Dept Chem & Biochem, Santa Cruz, CA 95064 USA

[3] Russian Acad Sci, Inst Biol Instrumentat, Pushchino 142292, Moscow Region, Russia

来源：

CHEMBIOCHEM | 2001年 / 2卷 / 11期

关键词：

carbonic anhydrase; fluorescence spectroscopy; intermediates; lyases; protein folding;

D O I：

10.1002/1439-7633(20011105)2:11<813::AID-CBIC813>3.0.CO;2-W

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

GdmCl-, urea-, and pH-induced unfolding pathways of bovine carbonic anhydrase II have been analyzed by using changes induced by different denaturing agents in intensity anisotropy, life time, and parameter A value of intrinsic fluorescence as well as intensity and life time of ANS (ammonium salt of 8-anilinonaphthalene-1-sulfonic acid) fluorescence. The formation of several stable unfolding intermediates, some of which were not observed previously has been established, This was further confirmed by representation of fluorescence data in terms of a "phase diagram", that is, I-lambda1 versus I-lambda2 dependence, where I-lambda1 and I-lambda2 are the fluorescence intensity values measured at wavelengths lambda (1) and lambda (2), respectively.

引用

页码：813 / 821

页数：9

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