4Y28

The structure of plant photosystem I super-complex at 2.8 angstrom resolution.

4Y28 の概要

• エントリーDOI: 10.2210/pdb4y28/pdb
• 分子名称: Photosystem I P700 chlorophyll a apoprotein A1, Photosystem I reaction center subunit IV A, chloroplastic, Photosystem I reaction center subunit VI, ... (29 entities in total)
• 機能のキーワード: photosynthesis, light harvesting, antenna, reaction center
• 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: 554633.01

構造登録者

Mazor, Y.,Brovikov, A.,Nelson, N. (登録日: 2015-02-09, 公開日: 2015-08-19, 最終更新日: 2024-11-06)

主引用文献

Mazor, Y.,Borovikova, A.,Nelson, N.
The structure of plant photosystem I super-complex at 2.8 angstrom resolution.
Elife, 4:e07433-e07433, 2015

PubMed Abstract: Most life forms on Earth are supported by solar energy harnessed by oxygenic photosynthesis. In eukaryotes, photosynthesis is achieved by large membrane-embedded super-complexes, containing reaction centers and connected antennae. Here, we report the structure of the higher plant PSI-LHCI super-complex determined at 2.8 Å resolution. The structure includes 16 subunits and more than 200 prosthetic groups, which are mostly light harvesting pigments. The complete structures of the four LhcA subunits of LHCI include 52 chlorophyll a and 9 chlorophyll b molecules, as well as 10 carotenoids and 4 lipids. The structure of PSI-LHCI includes detailed protein pigments and pigment-pigment interactions, essential for the mechanism of excitation energy transfer and its modulation in one of nature's most efficient photochemical machines.

PubMed: 26076232
DOI: 10.7554/eLife.07433

実験手法

X-RAY DIFFRACTION (2.8 Å)