- EMDB-0977: Cyanobacterial PSI Monomer from T. elongatus by Single Particle C... -
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基本情報
登録情報
データベース: EMDB / ID: EMD-0977
タイトル
Cyanobacterial PSI Monomer from T. elongatus by Single Particle CRYO-EM at 3.2 A Resolution
マップデータ
試料
複合体: Cyanobacterial PSI Monomer from T. elongatus
タンパク質・ペプチド: x 10種
リガンド: x 7種
キーワード
monomer / complex / photosystem / photosynthesis / MEMBRANE PROTEIN
機能・相同性
機能・相同性情報
photosystem I reaction center / photosystem I / photosynthetic electron transport in photosystem I / photosystem I / chlorophyll binding / plasma membrane-derived thylakoid membrane / photosynthesis / 4 iron, 4 sulfur cluster binding / electron transfer activity / oxidoreductase activity ...photosystem I reaction center / photosystem I / photosynthetic electron transport in photosystem I / photosystem I / chlorophyll binding / plasma membrane-derived thylakoid membrane / photosynthesis / 4 iron, 4 sulfur cluster binding / electron transfer activity / oxidoreductase activity / magnesium ion binding / metal ion binding 類似検索 - 分子機能
Photosystem I PsaM, reaction centre superfamily / Photosystem I PsaM, reaction centre / Photosystem I protein M (PsaM) / Photosystem I PsaL, reaction centre subunit XI / Photosystem I, reaction centre subunit XI / Photosystem I PsaL, reaction centre subunit XI superfamily / Photosystem I reaction centre subunit XI / Photosystem I reaction centre subunit VIII / Photosystem I reaction centre subunit VIII / Photosystem I reaction centre subunit VIII superfamily ...Photosystem I PsaM, reaction centre superfamily / Photosystem I PsaM, reaction centre / Photosystem I protein M (PsaM) / Photosystem I PsaL, reaction centre subunit XI / Photosystem I, reaction centre subunit XI / Photosystem I PsaL, reaction centre subunit XI superfamily / Photosystem I reaction centre subunit XI / Photosystem I reaction centre subunit VIII / Photosystem I reaction centre subunit VIII / Photosystem I reaction centre subunit VIII superfamily / Photosystem I PsaF, reaction centre subunit III / Photosystem I PsaF, reaction centre subunit III superfamily / Photosystem I reaction centre subunit III / Photosystem I PsaD / Photosystem I, reaction centre subunit PsaD superfamily / PsaD / Photosystem I PsaE, reaction centre subunit IV / Photosystem I PsaJ, reaction centre subunit IX superfamily / Photosystem I reaction centre subunit IV / PsaE / Photosystem I PsaJ, reaction centre subunit IX / Photosystem I reaction centre subunit IX / PsaJ / Photosystem I protein PsaC / Photosystem I PsaB / Photosystem I PsaA / Photosystem I PsaA/PsaB, conserved site / Photosystem I psaA and psaB proteins signature. / : / Photosystem I PsaA/PsaB / Photosystem I PsaA/PsaB superfamily / Photosystem I psaA/psaB protein / Electron transport accessory-like domain superfamily / 4Fe-4S dicluster domain / 4Fe-4S ferredoxin, iron-sulphur binding, conserved site / 4Fe-4S ferredoxin-type iron-sulfur binding region signature. / 4Fe-4S ferredoxin-type iron-sulfur binding domain profile. / 4Fe-4S ferredoxin-type, iron-sulphur binding domain 類似検索 - ドメイン・相同性
Photosystem I reaction center subunit III / Photosystem I reaction center subunit XII / Photosystem I P700 chlorophyll a apoprotein A1 / Photosystem I P700 chlorophyll a apoprotein A2 / Photosystem I iron-sulfur center / Photosystem I reaction center subunit II / Photosystem I reaction center subunit IV / Photosystem I reaction center subunit VIII / Photosystem I reaction center subunit IX / Photosystem I reaction center subunit XI 類似検索 - 構成要素
Ministry of Education, Culture, Sports, Science and Technology (Japan)
16H06560
日本
引用
ジャーナル: Commun Biol / 年: 2021 タイトル: Cryo-EM structure of a functional monomeric Photosystem I from Thermosynechococcus elongatus reveals red chlorophyll cluster. 著者: Orkun Çoruh / Anna Frank / Hideaki Tanaka / Akihiro Kawamoto / Eithar El-Mohsnawy / Takayuki Kato / Keiichi Namba / Christoph Gerle / Marc M Nowaczyk / Genji Kurisu / 要旨: A high-resolution structure of trimeric cyanobacterial Photosystem I (PSI) from Thermosynechococcus elongatus was reported as the first atomic model of PSI almost 20 years ago. However, the monomeric ...A high-resolution structure of trimeric cyanobacterial Photosystem I (PSI) from Thermosynechococcus elongatus was reported as the first atomic model of PSI almost 20 years ago. However, the monomeric PSI structure has not yet been reported despite long-standing interest in its structure and extensive spectroscopic characterization of the loss of red chlorophylls upon monomerization. Here, we describe the structure of monomeric PSI from Thermosynechococcus elongatus BP-1. Comparison with the trimer structure gave detailed insights into monomerization-induced changes in both the central trimerization domain and the peripheral regions of the complex. Monomerization-induced loss of red chlorophylls is assigned to a cluster of chlorophylls adjacent to PsaX. Based on our findings, we propose a role of PsaX in the stabilization of red chlorophylls and that lipids of the surrounding membrane present a major source of thermal energy for uphill excitation energy transfer from red chlorophylls to P700.
EMPIAR-10352 (タイトル: 3.2 Å resolution structure of a functional monomeric Photosystem I from Thermosynechococcus elongatus BP-1 by single particle cryo-EM with a 200 kV CRYO ARM electron microscope Data size: 226.1 Data #1: Raw, non aligned micrograph movies in compressed TIFF format. [micrographs - multiframe])
タンパク質・ペプチド: Photosystem I P700 chlorophyll a apoprotein A1
タンパク質・ペプチド: Photosystem I P700 chlorophyll a apoprotein A2
タンパク質・ペプチド: Photosystem I iron-sulfur center
タンパク質・ペプチド: Photosystem I reaction center subunit II
タンパク質・ペプチド: Photosystem I reaction center subunit IV
タンパク質・ペプチド: Photosystem I reaction center subunit III
タンパク質・ペプチド: Photosystem I reaction center subunit VIII
タンパク質・ペプチド: Photosystem I reaction center subunit IX
タンパク質・ペプチド: Photosystem I reaction center subunit XI
タンパク質・ペプチド: Photosystem I reaction center subunit XII
リガンド: CHLOROPHYLL A
リガンド: PHYLLOQUINONE
リガンド: BETA-CAROTENE
リガンド: 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE
リガンド: IRON/SULFUR CLUSTER
リガンド: 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE
リガンド: water
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超分子 #1: Cyanobacterial PSI Monomer from T. elongatus
超分子
名称: Cyanobacterial PSI Monomer from T. elongatus / タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: #1-#10 詳細: The monomers in this sample are generated by the monomerization of trimers of PSI during the purification process.
由来(天然)
生物種: Thermosynechococcus elongatus BP-1 (バクテリア)
分子量
理論値: 350 kDa/nm
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分子 #1: Photosystem I P700 chlorophyll a apoprotein A1
分子
名称: Photosystem I P700 chlorophyll a apoprotein A1 / タイプ: protein_or_peptide / ID: 1 / コピー数: 1 / 光学異性体: LEVO / EC番号: photosystem I