書誌事項
- タイトル別名
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- Atomic Structure and Water-splitting Reaction Mechanism of Photosystem II Revealed by X-ray Free Electron Laser
- Xセン ジユウ デンシ レーザー オ リヨウ シタ コウカガクケイ Ⅱ ノ ゲンシ コウゾウ ト ミズブンカイ ハンノウ キコウ ノ カイメイ
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抄録
Photosystem II (PSII) is a huge membrane-protein complex which catalyzes light-driven water-oxidation reaction at its catalytic center, the oxygen evolving complex (OEC). The crystal structure of PSII has been determined at 1.9 Å resolution using synchrotron radiation which revealed that the OEC is a Mn4CaO5 cluster. Some of the manganese atoms of the OEC are, however, rapidly reduced by X-ray irradiation which results in slight elongation of the distances between manganese cations. Furthermore, high-resolution 3D structural information is only limited to the dark-stable S1 state and the structures in the other intermediate states are missing. X-ray free electron laser (XFEL) has the potential to address these unsolved problems, and unveil the water-splitting reaction mechanism of PSII. In this review, we will introduce the analyses of the damage-free structure and an intermediate structure of PSII using XFEL, demonstrating the potential to obtain high spatial resolution of biological samples by XFEL.
収録刊行物
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- レーザー研究
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レーザー研究 45 (8), 475-, 2017
一般社団法人 レーザー学会
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詳細情報 詳細情報について
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- CRID
- 1391694356244100224
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- NII論文ID
- 130007957421
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- NII書誌ID
- AN00255326
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- ISSN
- 13496603
- 03870200
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- NDL書誌ID
- 028487996
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可