+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 7wg5 | ||||||||||||||||||
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タイトル | Cyclic electron transport supercomplex NDH-PSI from Arabidopsis | ||||||||||||||||||
要素 |
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キーワード | ELECTRON TRANSPORT / Supercomplex / PSI / NDH-PSI / plant / Arabidopsis / cyclic electron transport | ||||||||||||||||||
機能・相同性 | 機能・相同性情報 NAD(P)H dehydrogenase complex assembly / nitrite reductase complex [NAD(P)H] / photosystem I antenna complex / NADH dehydrogenase complex (plastoquinone) assembly / NAD(P)H dehydrogenase complex (plastoquinone) / glucose-6-phosphate 1-epimerase activity / photosynthetic NADP+ reduction / photosystem I stabilization / cellular response to sulfate starvation / chloroplast stromal thylakoid ...NAD(P)H dehydrogenase complex assembly / nitrite reductase complex [NAD(P)H] / photosystem I antenna complex / NADH dehydrogenase complex (plastoquinone) assembly / NAD(P)H dehydrogenase complex (plastoquinone) / glucose-6-phosphate 1-epimerase activity / photosynthetic NADP+ reduction / photosystem I stabilization / cellular response to sulfate starvation / chloroplast stromal thylakoid / chloroplast photosystem I / response to low light intensity stimulus / thylakoid lumen / pigment binding / protein histidine kinase binding / chloroplast membrane / response to high light intensity / ubiquinone biosynthetic process / thylakoid membrane / plastoglobule / P450-containing electron transport chain / chloroplast thylakoid / NADPH dehydrogenase activity / chloroplast thylakoid lumen / トランスロカーゼ; ヒドロンの輸送の触媒; 酸化還元酵素反応を伴う / photosynthesis, light harvesting in photosystem I / photosystem II oxygen evolving complex / photosystem I reaction center / chloroplast envelope / photosystem I / photosynthetic electron transport in photosystem I / thylakoid / photosystem I / photosynthetic electron transport chain / oxidoreductase activity, acting on NAD(P)H / oxidoreductase activity, acting on NAD(P)H, quinone or similar compound as acceptor / chloroplast stroma / plastid / extrinsic component of membrane / photosynthesis, light reaction / chloroplast thylakoid membrane / chlorophyll binding / electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity / NADH dehydrogenase activity / defense response to fungus / NADH dehydrogenase (ubiquinone) activity / ATP synthesis coupled electron transport / quinone binding / photosynthesis / response to cold / chloroplast / peptidylprolyl isomerase / peptidyl-prolyl cis-trans isomerase activity / 2 iron, 2 sulfur cluster binding / NAD binding / protein folding / 4 iron, 4 sulfur cluster binding / carbohydrate binding / response to oxidative stress / carbohydrate metabolic process / electron transfer activity / protein stabilization / oxidoreductase activity / iron ion binding / protein domain specific binding / mRNA binding / calcium ion binding / magnesium ion binding / protein homodimerization activity / extracellular region / nucleus / metal ion binding / plasma membrane / cytosol / cytoplasm 類似検索 - 分子機能 | ||||||||||||||||||
生物種 | Arabidopsis thaliana (シロイヌナズナ) | ||||||||||||||||||
手法 | 電子顕微鏡法 / 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 3.89 Å | ||||||||||||||||||
データ登録者 | Pan, X.W. / Li, M. | ||||||||||||||||||
資金援助 | 中国, 5件
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引用 | ジャーナル: Mol Plant / 年: 2022 タイトル: Supramolecular assembly of chloroplast NADH dehydrogenase-like complex with photosystem I from Arabidopsis thaliana. 著者: Xiaodong Su / Duanfang Cao / Xiaowei Pan / Lifang Shi / Zhenfeng Liu / Luca Dall'Osto / Roberto Bassi / Xinzheng Zhang / Mei Li / 要旨: Cyclic electron transport/flow (CET/CEF) in chloroplasts is a regulatory process essential for the optimization of plant photosynthetic efficiency. A crucial CEF pathway is catalyzed by a membrane- ...Cyclic electron transport/flow (CET/CEF) in chloroplasts is a regulatory process essential for the optimization of plant photosynthetic efficiency. A crucial CEF pathway is catalyzed by a membrane-embedded NADH dehydrogenase-like (NDH) complex that contains at least 29 protein subunits and associates with photosystem I (PSI) to form the NDH-PSI supercomplex. Here, we report the 3.9 Å resolution structure of the Arabidopsis thaliana NDH-PSI (AtNDH-PSI) supercomplex. We constructed structural models for 26 AtNDH subunits, among which 11 are unique to chloroplasts and stabilize the core part of the NDH complex. In the supercomplex, one NDH can bind up to two PSI-light-harvesting complex I (PSI-LHCI) complexes at both sides of its membrane arm. Two minor LHCIs, Lhca5 and Lhca6, each present in one PSI-LHCI, interact with NDH and contribute to supercomplex formation and stabilization. Collectively, our study reveals the structural details of the AtNDH-PSI supercomplex assembly and provides a molecular basis for further investigation of the regulatory mechanism of CEF in plants. | ||||||||||||||||||
履歴 |
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-構造の表示
ムービー |
ムービービューア |
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構造ビューア | 分子: MolmilJmol/JSmol |
-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 7wg5.cif.gz | 2.5 MB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb7wg5.ent.gz | 表示 | PDB形式 | |
PDBx/mmJSON形式 | 7wg5.json.gz | ツリー表示 | PDBx/mmJSON形式 | |
その他 | その他のダウンロード |
-検証レポート
文書・要旨 | 7wg5_validation.pdf.gz | 20.3 MB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 7wg5_full_validation.pdf.gz | 21.5 MB | 表示 | |
XML形式データ | 7wg5_validation.xml.gz | 391.6 KB | 表示 | |
CIF形式データ | 7wg5_validation.cif.gz | 550.1 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/wg/7wg5 ftp://data.pdbj.org/pub/pdb/validation_reports/wg/7wg5 | HTTPS FTP |
-関連構造データ
-リンク
-集合体
登録構造単位 |
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1 |
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-要素
+Photosystem I P700 chlorophyll a apoprotein ... , 2種, 4分子 AABAABBB
+タンパク質 , 6種, 7分子 ACBCDdjOT
+Photosystem I reaction center subunit ... , 9種, 18分子 ADBDAEBEAFBFAGBGAHBHAIBIAJBJAKBKALBL
+Chlorophyll a-b binding protein ... , 2種, 3分子 A1B1A4
+Photosystem I chlorophyll a/b-binding protein ... , 4種, 5分子 A3B3A6B2B5
+NAD(P)H-quinone oxidoreductase subunit ... , 13種, 13分子 ABCEFGHIJKLMN
+Photosynthetic NDH subunit of subcomplex B ... , 4種, 4分子 abce
+Photosynthetic NDH subunit of lumenal location ... , 4種, 4分子 fghi
+糖 , 2種, 10分子
+非ポリマー , 11種, 413分子
+詳細
-実験情報
-実験
実験 | 手法: 電子顕微鏡法 |
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EM実験 | 試料の集合状態: PARTICLE / 3次元再構成法: 単粒子再構成法 |
-試料調製
構成要素 | 名称: Cyclic electron transfer supercomplex from Arabidopsis タイプ: COMPLEX / Entity ID: #1-#44 / 由来: NATURAL |
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由来(天然) | 生物種: Arabidopsis thaliana (シロイヌナズナ) |
緩衝液 | pH: 7.8 |
試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
急速凍結 | 凍結剤: ETHANE |
-電子顕微鏡撮影
実験機器 | モデル: Titan Krios / 画像提供: FEI Company |
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顕微鏡 | モデル: FEI TITAN KRIOS |
電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: FLOOD BEAM |
電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2500 nm / 最小 デフォーカス(公称値): 1500 nm |
撮影 | 電子線照射量: 60 e/Å2 / 検出モード: SUPER-RESOLUTION フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) |
-解析
CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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3次元再構成 | 解像度: 3.89 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 136022 / 対称性のタイプ: POINT |