5L8R

The structure of plant photosystem I super-complex at 2.6 angstrom resolution.

5L8R の概要

• エントリーDOI: 10.2210/pdb5l8r/pdb
• 関連するPDBエントリー: 1JB0 4XK8 4Y28
• 分子名称: Lhca1, Photosystem I reaction center subunit III, PsaG, ... (31 entities in total)
• 機能のキーワード: photosynthesis, membrane complex, chlorophyll, light harvesting, oxidoreductase
• 由来する生物種: Pisum sativum (Garden pea); 詳細
• タンパク質・核酸の鎖数: 16
• 化学式量合計: 564878.35

構造登録者

Mazor, Y.,Borovikova, A.,Caspy, I.,Nelson, N. (登録日: 2016-06-08, 公開日: 2017-03-15, 最終更新日: 2024-10-23)

主引用文献

Mazor, Y.,Borovikova, A.,Caspy, I.,Nelson, N.
Structure of the plant photosystem I supercomplex at 2.6 angstrom resolution.
Nat Plants, 3:17014-17014, 2017

PubMed Abstract: Four elaborate membrane complexes carry out the light reaction of oxygenic photosynthesis. Photosystem I (PSI) is one of two large reaction centres responsible for converting light photons into the chemical energy needed to sustain life. In the thylakoid membranes of plants, PSI is found together with its integral light-harvesting antenna, light-harvesting complex I (LHCI), in a membrane supercomplex containing hundreds of light-harvesting pigments. Here, we report the crystal structure of plant PSI-LHCI at 2.6 Å resolution. The structure reveals the configuration of PsaK, a core subunit important for state transitions in plants, a conserved network of water molecules surrounding the electron transfer centres and an elaborate structure of lipids bridging PSI and its LHCI antenna. We discuss the implications of the structure for energy transfer and the evolution of PSI.

PubMed: 28248295
DOI: 10.1038/nplants.2017.14

実験手法

X-RAY DIFFRACTION (2.6 Å)