Title |
Red fluorescent protein-based cAMP indicator applicable to optogenetics and in vivo imaging
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Published in |
Scientific Reports, August 2017
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DOI | 10.1038/s41598-017-07820-6 |
Pubmed ID | |
Authors |
Kazuki Harada, Motoki Ito, Xiaowen Wang, Mika Tanaka, Devina Wongso, Ayumu Konno, Hirokazu Hirai, Hajime Hirase, Takashi Tsuboi, Tetsuya Kitaguchi |
Abstract |
cAMP is a common second messenger that is involved in various physiological processes. To expand the colour palette of available cAMP indicators, we developed a red cAMP indicator named "Pink Flamindo" (Pink Fluorescent cAMP indicator). The fluorescence intensity of Pink Flamindo increases 4.2-fold in the presence of a saturating dose of cAMP, with excitation and emission peaks at 567 nm and 590 nm, respectively. Live-cell imaging revealed that Pink Flamindo is effective for monitoring the spatio-temporal dynamics of intracellular cAMP generated by photoactivated adenylyl cyclase in response to blue light, and in dual-colour imaging studies using a green Ca(2+) indicator (G-GECO). Furthermore, we successfully monitored the elevation of cAMP levels in vivo in cerebral cortical astrocytes by two-photon imaging. We propose that Pink Flamindo will facilitate future in vivo, optogenetic studies of cell signalling and cAMP dynamics. |
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Country | Count | As % |
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United States | 27 | 43% |
Canada | 8 | 13% |
Japan | 3 | 5% |
France | 2 | 3% |
China | 2 | 3% |
South Africa | 1 | 2% |
Italy | 1 | 2% |
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Thailand | 1 | 2% |
Other | 2 | 3% |
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Demographic breakdown
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---|---|---|
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Scientists | 17 | 27% |
Practitioners (doctors, other healthcare professionals) | 1 | 2% |
Science communicators (journalists, bloggers, editors) | 1 | 2% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 300 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 66 | 22% |
Researcher | 45 | 15% |
Student > Master | 28 | 9% |
Student > Bachelor | 26 | 9% |
Professor | 17 | 6% |
Other | 45 | 15% |
Unknown | 73 | 24% |
Readers by discipline | Count | As % |
---|---|---|
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Biochemistry, Genetics and Molecular Biology | 62 | 21% |
Agricultural and Biological Sciences | 49 | 16% |
Chemistry | 11 | 4% |
Engineering | 6 | 2% |
Other | 20 | 7% |
Unknown | 85 | 28% |