共 34 条
Bright and stable near-infrared fluorescent protein for in vivo imaging
被引:547
作者:
Filonov, Grigory S.
[1
,2
]
Piatkevich, Kiryl D.
[1
,2
]
Ting, Li-Min
[3
,4
]
Zhang, Jinghang
[5
]
Kim, Kami
[3
,4
]
Verkhusha, Vladislav V.
[1
,2
]
机构:
[1] Albert Einstein Coll Med, Dept Anat & Struct Biol, Bronx, NY 10467 USA
[2] Albert Einstein Coll Med, Gruss Lipper Biophoton Ctr, Bronx, NY 10467 USA
[3] Albert Einstein Coll Med, Dept Med, Bronx, NY 10467 USA
[4] Albert Einstein Coll Med, Dept Microbiol & Immunol, Bronx, NY 10467 USA
[5] Albert Einstein Coll Med, Flow Cytometry Core Facil, Bronx, NY 10467 USA
基金:
美国国家卫生研究院;
关键词:
ELECTROSTATIC INTERACTIONS;
PHYTOCHROME;
BACTERIOPHYTOCHROME;
STABILITY;
EXPRESSION;
BACTERIA;
CELLS;
CHAIN;
D O I:
10.1038/nbt.1918
中图分类号:
Q81 [生物工程学(生物技术)];
Q93 [微生物学];
学科分类号:
071005 ;
0836 ;
090102 ;
100705 ;
摘要:
Imaging biological processes in mammalian tissues will be facilitated by fluorescent probes with excitation and emission bands within the near-infrared optical window of high transparency(1). Here we report a phytochrome-based near-infrared fluorescent protein (iRFP) with excitation and emission maxima at 690 nm and 713 nm, respectively. iRFP does not require an exogenous supply of the chromophore biliverdin and has higher effective brightness, intracellular stability and photostability than earlier phytochrome-derived fluorescent probes. Compared with far-red GFP-like proteins, iRFP has a substantially higher signal-to-background ratio in a mouse model due to its infrared-shifted spectra.
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页码:757 / U133
页数:7
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