2017 Fiscal Year Final Research Report
Functional analysis of cyanobacterial rhodopsins: How do they use the two different phototrophic systems.
| Project/Area Number |
15K14601
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Ecology/Environment
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| Research Institution | The University of Tokyo |
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Principal Investigator |
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | ロドプシン / シアノバクテリア / バクテリア / 微生物生態 |
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| Outline of Final Research Achievements |
A novel rhodopsin was discovered from cyanobacteria (Synechocystis sp. PCC 7509) and named SyHR. Functional analysis showed that SyHR functions as light-driven inward anion (Cl- and SO42-) pump. Spectroscopic analysis revealed that SyHR utilize green light (about 540 nm). These results showed that cyanobacterial SyHR actively transports anion using green light not absorbed by chlorophyll. Also, the rhodopsin which transports divalent anions has not been found so far, and a first light-driven divalent anion pump was shown in this study.
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| Free Research Field |
海洋微生物学
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