Effects of Fluorination on the Folding Kinetics of a Heterodimeric Coiled Coil

被引:21
作者
Salwiczek, Mario [1 ]
Koksch, Beate [1 ]
机构
[1] Free Univ Berlin, Dept Biol Chem & Pharm, D-14195 Berlin, Germany
关键词
alpha-helical coiled coil; fluorine; kinetics; non-natural amino acids; surface plasmon resonance; LEUCINE-ZIPPER; PROTEIN;
D O I
10.1002/cbic.200900518
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
The fast and the fluorous: SPR is a powerful method to investigate fast interactions between peptides and proteins. Differences of even one fluorine atom within a side chain can be detected. It is shown that fluorination of a single residue within the hydrophobic core results in a twofold increase in the association rate of a coiled-coil heterodimer. The observations furthermore reinvigorate the question whether fluorine-fluorine contacts in the unfolded state affect the kinetics of folding. © 2009 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:2867 / 2870
页数:4
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