2010 Fiscal Year Final Research Report
The study on the role of extrinsic proteins in assembly of photosystem 2 complex
| Project/Area Number |
20608002
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
光生命科学
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| Research Institution | The University of Tokyo |
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Principal Investigator |
MIZUSAWA Naoki The University of Tokyo, 大学院・総合文化研究科, 助教 (80342856)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 植物生理 / シアノバクテリア / 光合成 / 光化学系II / 表在性蛋白質 |
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| Research Abstract |
Mechanism of assembly of photosystem II complex (PSII) has been investigated focusing on the role of extrinsic proteins in the assembly process of PSII. Psb28 is a newly identified extrinsic protein bound to PSII but its function was unknown. In this study, we analyzed properties of PSII in a disruption mutant of psb28 gene of cyanobacterium. It was found that, in the psb28 mutant, PSII assembly intermediates were accumulated and that a repair process of PSII was significantly inhibited. These results suggest that Psb28 plays an important role in the repair process of PSII.
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