Optical control of protein activity by fluorescent protein domains.

Optical control of protein activity by fluorescent protein domains.
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DOI:
10.1126/science.1226854
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发表时间:
2012-11-09
期刊:
Science (New York, N.Y.)
影响因子:
--
通讯作者:
Lin MZ
Lin MZ
中科院分区:
其他
文献类型:
--
作者:
Zhou XX;Chung HK;Lam AJ;Lin MZ

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Fluorescent proteins (FPs) are widely used as optical sensors while other light-absorbing domains have been used for optical control of protein localization or activity. Here we describe a previously unknown capability of a mutant of the photochromic FP Dronpa – light-dependent dissociation and association – and use it to control protein activities with light. Fusion of mutant Dronpa domains to both termini of an enzyme domain creates a fluorescent light-inducible protein that is inactive in the dark but can be activated by light. Unlike other methods for optical control of single proteins, Dronpa-based fluorescent light-inducible proteins are simple to generate and have self-reporting abilities. Our findings extend the useful applications for FPs in biological experiments and engineered cellular systems from exclusively sensing functions to also encompass optogenetic control.
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