Crystallographic evidence for isomeric chromophores in 3-fluorotyrosyl-green fluorescent protein

被引:19
作者
Bae, JH [1 ]
Pal, PP [1 ]
Moroder, L [1 ]
Huber, R [1 ]
Budisa, N [1 ]
机构
[1] Max Planck Inst Biochem, Abt Strukturforsch, D-82152 Martinsried, Germany
关键词
chromophores; fluorotyrosine; green fluorescent protein; isomerization; selective pressure incorporation;
D O I
10.1002/cbic.200300818
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
Flipping fluorine chromophores: The unique fluorescence property of the chromophore from green fluorescent protein (GFP) of the jellyfish Aequorea victoria results from the rigid framework of its interactions with the surrounding protein matrix. The three-dimensional structure of 3-fluorotyrosine-containing "enhanced" GFP shows two conformational states of fluorine as an integral part of the chromophore in the crystalline state (see scheme). In this way, chromophore fluorination might be used as a tool to study its flipping and dynamics directly. This will certainly lead to enrichment or even a re-evaluation of the current concepts in this field.
引用
收藏
页码:720 / 722
页数:3
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