- EMDB-14870: Monomeric PSI of Chlamydomonas reinhardtii at 2.31 A resolution -
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基本情報
登録情報
データベース: EMDB / ID: EMD-14870
タイトル
Monomeric PSI of Chlamydomonas reinhardtii at 2.31 A resolution
マップデータ
試料
細胞器官・細胞要素: Photosystem I dimer of Chlamydomonas reinhardtii光化学系I
タンパク質・ペプチド: x 19種
リガンド: x 14種
機能・相同性
機能・相同性情報
photosynthesis, light harvesting / chloroplast thylakoid lumen / photosynthesis, light harvesting in photosystem I / photosystem I reaction center / 光化学系I / 光化学系I / 光化学系II / photosynthetic electron transport in photosystem I / chlorophyll binding / chloroplast thylakoid membrane ...photosynthesis, light harvesting / chloroplast thylakoid lumen / photosynthesis, light harvesting in photosystem I / photosystem I reaction center / 光化学系I / 光化学系I / 光化学系II / photosynthetic electron transport in photosystem I / chlorophyll binding / chloroplast thylakoid membrane / response to light stimulus / 光合成 / 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 reaction center subunit V / Photosystem I reaction center subunit psaK, plant / Photosystem I reaction center subunit V/PsaK, plant / Photosystem I PsaG/PsaK domain, chloroplastic / Photosystem I psaG and psaK proteins signature. / Photosystem I reaction center subunit V/PsaK / Photosystem I psaG / psaK / Photosystem I PsaL, reaction centre subunit XI / Photosystem I, reaction centre subunit XI / Photosystem I PsaL, reaction centre subunit XI superfamily ...Photosystem I reaction center subunit V / Photosystem I reaction center subunit psaK, plant / Photosystem I reaction center subunit V/PsaK, plant / Photosystem I PsaG/PsaK domain, chloroplastic / Photosystem I psaG and psaK proteins signature. / Photosystem I reaction center subunit V/PsaK / Photosystem I psaG / psaK / 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 / Chlorophyll A-B binding protein, plant and chromista / Photosystem I PsaJ, reaction centre subunit IX / Photosystem I PsaD / Chlorophyll A-B binding protein / Photosystem I PsaJ, reaction centre subunit IX superfamily / Photosystem I, reaction centre subunit PsaD superfamily / Chlorophyll A-B binding protein / Photosystem I reaction centre subunit IX / PsaJ / PsaD / Photosystem I PsaE, reaction centre subunit IV / Photosystem I reaction centre subunit IV / PsaE / Photosystem I protein PsaC / Photosystem I PsaA / Photosystem I PsaB / 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 VIII / PSI subunit V / Chlorophyll a-b binding protein, chloroplastic / Chlorophyll a-b binding protein, chloroplastic / Photosystem I P700 chlorophyll a apoprotein A2 / Photosystem I P700 chlorophyll a apoprotein A1 / Photosystem I reaction center subunit IV, chloroplastic / Photosystem I reaction center subunit III, chloroplastic / Photosystem I reaction center subunit V, chloroplastic / Photosystem I reaction center subunit psaK, chloroplastic ...Photosystem I reaction center subunit VIII / PSI subunit V / Chlorophyll a-b binding protein, chloroplastic / Chlorophyll a-b binding protein, chloroplastic / Photosystem I P700 chlorophyll a apoprotein A2 / Photosystem I P700 chlorophyll a apoprotein A1 / Photosystem I reaction center subunit IV, chloroplastic / Photosystem I reaction center subunit III, chloroplastic / Photosystem I reaction center subunit V, chloroplastic / Photosystem I reaction center subunit psaK, chloroplastic / Photosystem I reaction center subunit IX / Photosystem I iron-sulfur center / Chlorophyll a-b binding protein, chloroplastic / Photosystem I reaction center subunit II, chloroplastic / Chlorophyll a-b binding protein, chloroplastic / Chlorophyll a-b binding protein, chloroplastic / Chlorophyll a-b binding protein, chloroplastic / Chlorophyll a-b binding protein, chloroplastic / Chlorophyll a-b binding protein, chloroplastic 類似検索 - 構成要素
German Federal Ministry for Education and Research
NRW 28 313-WO44A
ドイツ
German-Israeli Foundation for Research and Development
G-1483- 207/2018
ドイツ
引用
ジャーナル: Nat Plants / 年: 2022 タイトル: Algal photosystem I dimer and high-resolution model of PSI-plastocyanin complex. 著者: Andreas Naschberger / Laura Mosebach / Victor Tobiasson / Sebastian Kuhlgert / Martin Scholz / Annemarie Perez-Boerema / Thi Thu Hoai Ho / André Vidal-Meireles / Yuichiro Takahashi / Michael ...著者: Andreas Naschberger / Laura Mosebach / Victor Tobiasson / Sebastian Kuhlgert / Martin Scholz / Annemarie Perez-Boerema / Thi Thu Hoai Ho / André Vidal-Meireles / Yuichiro Takahashi / Michael Hippler / Alexey Amunts / 要旨: Photosystem I (PSI) enables photo-electron transfer and regulates photosynthesis in the bioenergetic membranes of cyanobacteria and chloroplasts. Being a multi-subunit complex, its macromolecular ...Photosystem I (PSI) enables photo-electron transfer and regulates photosynthesis in the bioenergetic membranes of cyanobacteria and chloroplasts. Being a multi-subunit complex, its macromolecular organization affects the dynamics of photosynthetic membranes. Here we reveal a chloroplast PSI from the green alga Chlamydomonas reinhardtii that is organized as a homodimer, comprising 40 protein subunits with 118 transmembrane helices that provide scaffold for 568 pigments. Cryogenic electron microscopy identified that the absence of PsaH and Lhca2 gives rise to a head-to-head relative orientation of the PSI-light-harvesting complex I monomers in a way that is essentially different from the oligomer formation in cyanobacteria. The light-harvesting protein Lhca9 is the key element for mediating this dimerization. The interface between the monomers is lacking PsaH and thus partially overlaps with the surface area that would bind one of the light-harvesting complex II complexes in state transitions. We also define the most accurate available PSI-light-harvesting complex I model at 2.3 Å resolution, including a flexibly bound electron donor plastocyanin, and assign correct identities and orientations to all the pigments, as well as 621 water molecules that affect energy transfer pathways.