- EMDB-11326: Photosystem I reduced Plastocyanin Complex -
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基本情報
登録情報
データベース: EMDB / ID: EMD-11326
タイトル
Photosystem I reduced Plastocyanin Complex
マップデータ
試料
複合体: Photosystem I plastocyanin complex
タンパク質・ペプチド: x 14種
タンパク質・ペプチド: x 3種
リガンド: x 16種
キーワード
Photosystem I / membrane protein / PHOTOSYNTHESIS
機能・相同性
機能・相同性情報
response to low light intensity stimulus / : / plastoglobule / response to high light intensity / chloroplast thylakoid / photosynthesis, light harvesting in photosystem I / thylakoid / photosynthesis, light harvesting / chloroplast thylakoid lumen / chloroplast envelope ...response to low light intensity stimulus / : / plastoglobule / response to high light intensity / chloroplast thylakoid / photosynthesis, light harvesting in photosystem I / thylakoid / photosynthesis, light harvesting / chloroplast thylakoid lumen / chloroplast envelope / photosystem I reaction center / photosystem I / photosynthetic electron transport in photosystem I / photosystem I / photosystem II / chlorophyll binding / chloroplast thylakoid membrane / photosynthesis / response to cold / chloroplast / 4 iron, 4 sulfur cluster binding / electron transfer activity / oxidoreductase activity / protein domain specific binding / copper ion binding / mRNA binding / magnesium ion binding / metal ion binding 類似検索 - 分子機能
Photosystem I reaction center subunit V / Plastocyanin / 4Fe-4S dicluster domain / Photosystem I reaction center subunit psaK, plant / Photosystem I reaction center subunit V/PsaK, plant / Photosystem I PsaG/PsaK domain, chloroplastic / Photosystem I reaction centre subunit PsaK superfamily / Blue (type 1) copper protein, plastocyanin-type / Photosystem I reaction center subunit V/PsaK / Photosystem I psaG / psaK ...Photosystem I reaction center subunit V / Plastocyanin / 4Fe-4S dicluster domain / Photosystem I reaction center subunit psaK, plant / Photosystem I reaction center subunit V/PsaK, plant / Photosystem I PsaG/PsaK domain, chloroplastic / Photosystem I reaction centre subunit PsaK superfamily / Blue (type 1) copper protein, plastocyanin-type / Photosystem I reaction center subunit V/PsaK / Photosystem I psaG / psaK / 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 / Chlorophyll A-B binding protein, plant and chromista / Photosystem I PsaJ, reaction centre subunit IX / Photosystem I reaction centre subunit IX / PsaJ / Chlorophyll A-B binding protein / Chlorophyll A-B binding protein / 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 / Blue (type 1) copper domain / Copper binding proteins, plastocyanin/azurin family / Blue (type 1) copper protein, binding site / Type-1 copper (blue) proteins signature. / 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 / Cupredoxin 類似検索 - ドメイン・相同性
Photosystem I P700 chlorophyll a apoprotein A1 / Photosystem I P700 chlorophyll a apoprotein A2 / Photosystem I reaction center subunit III / Photosystem I reaction center subunit V, chloroplastic / Photosystem I reaction center subunit IX / Photosystem I reaction center subunit IV / Photosystem I reaction center subunit II, chloroplastic / PSI-K / Photosystem I iron-sulfur center / Plastocyanin, chloroplastic ...Photosystem I P700 chlorophyll a apoprotein A1 / Photosystem I P700 chlorophyll a apoprotein A2 / Photosystem I reaction center subunit III / Photosystem I reaction center subunit V, chloroplastic / Photosystem I reaction center subunit IX / Photosystem I reaction center subunit IV / Photosystem I reaction center subunit II, chloroplastic / PSI-K / Photosystem I iron-sulfur center / Plastocyanin, chloroplastic / Photosystem I reaction center subunit VIII / Chlorophyll a-b binding protein 6, chloroplastic / Chlorophyll a-b binding protein 3, chloroplastic / Chlorophyll a-b binding protein, chloroplastic / Chlorophyll a-b binding protein P4, chloroplastic 類似検索 - 構成要素
German-Israeli Foundation for Research and Development
G-1483-207/2018
イスラエル
European Research Council (ERC)
723991
ベルギー
引用
ジャーナル: Biochem J / 年: 2021 タイトル: Structure of plant photosystem I-plastocyanin complex reveals strong hydrophobic interactions. 著者: Ido Caspy / Mariia Fadeeva / Sebastian Kuhlgert / Anna Borovikova-Sheinker / Daniel Klaiman / Gal Masrati / Friedel Drepper / Nir Ben-Tal / Michael Hippler / Nathan Nelson / 要旨: Photosystem I is defined as plastocyanin-ferredoxin oxidoreductase. Taking advantage of genetic engineering, kinetic analyses and cryo-EM, our data provide novel mechanistic insights into binding and ...Photosystem I is defined as plastocyanin-ferredoxin oxidoreductase. Taking advantage of genetic engineering, kinetic analyses and cryo-EM, our data provide novel mechanistic insights into binding and electron transfer between PSI and Pc. Structural data at 2.74 Å resolution reveals strong hydrophobic interactions in the plant PSI-Pc ternary complex, leading to exclusion of water molecules from PsaA-PsaB/Pc interface once the PSI-Pc complex forms. Upon oxidation of Pc, a slight tilt of bound oxidized Pc allows water molecules to accommodate the space between Pc and PSI to drive Pc dissociation. Such a scenario is consistent with the six times larger dissociation constant of oxidized as compared with reduced Pc and mechanistically explains how this molecular machine optimized electron transfer for fast turnover.