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Gasotransmitter Reg...
Gasotransmitter Regulation of Phosphatase Activity in Live Cells Studied by Three-Channel Imaging Correlation
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- Ou, Pan (author)
- Anhui Univ, Peoples R China; Anhui Univ, Peoples R China
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- Zhang, Ruilong (author)
- Anhui Univ, Peoples R China; Anhui Univ, Peoples R China
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- Liu, Zhengjie (author)
- Anhui Univ, Peoples R China; Anhui Univ, Peoples R China
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- Tian, Xiaohe (author)
- Anhui Univ, Peoples R China; Anhui Univ, Peoples R China
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- Han, Guangmei (author)
- Chinese Acad Sci, Peoples R China
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- Liu, Bianhua (author)
- Chinese Acad Sci, Peoples R China
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- Hu, Zhang-Jun (author)
- Linköpings universitet,Molekylär ytfysik och nanovetenskap,Tekniska fakulteten
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- Zhang, Zhongping (author)
- Anhui Univ, Peoples R China; Anhui Univ, Peoples R China; Chinese Acad Sci, Peoples R China
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(creator_code:org_t)
- WILEY-V C H VERLAG GMBH, 2019
- 2019
- English.
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In: Angewandte Chemie International Edition. - : WILEY-V C H VERLAG GMBH. - 1433-7851 .- 1521-3773. ; 58:8, s. 2261-2265
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http://liu.diva-port...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Enzyme activity in live cells is dynamically regulated by small-molecule transmitters for maintaining normal physiological functions. A few probes have been devised to measure intracellular enzyme activities by fluorescent imaging, but the study of the regulation of enzyme activity via gasotransmitters in situ remains a long-standing challenge. Herein, we report a three-channel imaging correlation by a single dual-reactive fluorescent probe to measure the dependence of phosphatase activity on the H2S level in cells. The two sites of the probe reactive to H2S and phosphatase individually produce blue and green fluorescent responses, respectively, and resonance energy transfer can be triggered by their coexistence. Fluorescent analysis based on the three-channel imaging correlation shows that cells have an ideal level of H2S to promote phosphatase activity up to its maximum. Significantly, a slight deviation from this H2S level leads to a sharp decrease of phosphatase activity. The discovery further strengthens our understanding of the importance of H2S in cellular signaling and in various human diseases.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinsk bioteknologi -- Medicinsk bioteknologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Medical Biotechnology -- Medical Biotechnology (hsv//eng)
Keyword
- enzyme regulation; fluorescent probes; gasotransmitters; imaging agents; phosphatase
Publication and Content Type
- ref (subject category)
- art (subject category)
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