登録情報 データベース : EMDB / ID : EMD-12661 構造の表示 ダウンロードとリンクタイトル Respiratory complex I from Escherichia coli - focused refinement of cytoplasmic arm マップデータ 詳細 試料複合体 : Respiratory complex I from Escherichia coli - focused refinement of cytoplasmic armリガンド : x 5種 詳細機能・相同性 機能・相同性情報分子機能 ドメイン・相同性 構成要素
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 / NADH dehydrogenase (quinone) (non-electrogenic) activity / NADH dehydrogenase complex / cellular respiration / molybdopterin cofactor binding / respiratory chain complex I / NADH dehydrogenase (ubiquinone) activity / quinone binding / ATP synthesis coupled electron transport / proton transmembrane transport ... 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 / NADH dehydrogenase (quinone) (non-electrogenic) activity / NADH dehydrogenase complex / cellular respiration / molybdopterin cofactor binding / respiratory chain complex I / NADH dehydrogenase (ubiquinone) activity / quinone binding / ATP synthesis coupled electron transport / proton transmembrane transport / aerobic respiration / respiratory electron transport chain / 2 iron, 2 sulfur cluster binding / NAD binding / FMN binding / 4 iron, 4 sulfur cluster binding / oxidoreductase activity / iron ion binding / metal ion binding / membrane / plasma membrane / cytoplasm 類似検索 - 分子機能 NADH dehydrogenase, subunit CD / Molybdopterin oxidoreductase Fe4S4 domain / Molybdopterin oxidoreductase Fe4S4 domain / Molybdopterin dinucleotide-binding domain / Molydopterin dinucleotide binding domain / : / NADH-quinone oxidoreductase subunit 3, ferredoxin-like domain / NADH-quinone oxidoreductase, chain I / NAD(P)H-quinone oxidoreductase subunit D/H / NADH:ubiquinone oxidoreductase, 49kDa subunit, conserved site ... NADH dehydrogenase, subunit CD / Molybdopterin oxidoreductase Fe4S4 domain / Molybdopterin oxidoreductase Fe4S4 domain / Molybdopterin dinucleotide-binding domain / Molydopterin dinucleotide binding domain / : / NADH-quinone oxidoreductase subunit 3, ferredoxin-like domain / NADH-quinone oxidoreductase, chain I / NAD(P)H-quinone oxidoreductase subunit D/H / NADH:ubiquinone oxidoreductase, 49kDa subunit, conserved site / Respiratory chain NADH dehydrogenase 49 Kd subunit signature. / NADH:ubiquinone oxidoreductase, subunit G / Respiratory-chain NADH dehydrogenase 75 Kd subunit signature 3. / NADH-quinone oxidoreductase, subunit D / Respiratory-chain NADH dehydrogenase, 49 Kd subunit / Respiratory-chain NADH dehydrogenase 75 Kd subunit signature 2. / NADH ubiquinone oxidoreductase, F subunit / Aspartate decarboxylase-like domain superfamily / NADH dehydrogenase, subunit C / NADH:ubiquinone oxidoreductase, 30kDa subunit, conserved site / Respiratory chain NADH dehydrogenase 30 Kd subunit signature. / : / Respiratory-chain NADH dehydrogenase 75 Kd subunit signature 1. / NADH:ubiquinone oxidoreductase, 30kDa subunit / NADH:ubiquinone oxidoreductase, 30kDa subunit superfamily / Respiratory-chain NADH dehydrogenase, 30 Kd subunit / NADH:ubiquinone oxidoreductase, 75kDa subunit, conserved site / NADH-ubiquinone oxidoreductase-G iron-sulfur binding region / NADH-ubiquinone oxidoreductase-G iron-sulfur binding region / Respiratory-chain NADH dehydrogenase 51 Kd subunit signature 1. / 2Fe-2S iron-sulfur cluster binding domain / Respiratory-chain NADH dehydrogenase 24 Kd subunit signature. / NuoE domain / NADH:ubiquinone oxidoreductase, subunit G, iron-sulphur binding / His(Cys)3-ligated-type [4Fe-4S] domain profile. / NADH-quinone oxidoreductase subunit E-like / NADH:ubiquinone oxidoreductase, 51kDa subunit, conserved site / Respiratory-chain NADH dehydrogenase 51 Kd subunit signature 2. / NADH-quinone oxidoreductase subunit E, N-terminal / NADH-ubiquinone oxidoreductase 51kDa subunit, iron-sulphur binding domain / NADH-ubiquinone oxidoreductase 51kDa subunit, iron-sulphur binding domain superfamily / NADH-ubiquinone oxidoreductase-F iron-sulfur binding region / NADH-ubiquinone oxidoreductase-F iron-sulfur binding region / Thioredoxin-like [2Fe-2S] ferredoxin / NADH-ubiquinone oxidoreductase 51kDa subunit, FMN-binding domain / NADH-ubiquinone oxidoreductase 51kDa subunit, FMN-binding domain superfamily / Nuo51 FMN-binding domain / Molybdopterin oxidoreductase, 4Fe-4S domain / Prokaryotic molybdopterin oxidoreductases 4Fe-4S domain profile. / Molybdopterin oxidoreductase / Molybdopterin oxidoreductase / [NiFe]-hydrogenase, large subunit / 4Fe-4S dicluster domain / 2Fe-2S ferredoxin-type iron-sulfur binding domain profile. / 2Fe-2S ferredoxin-type iron-sulfur binding domain / 2Fe-2S ferredoxin-like superfamily / 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 / Thioredoxin-like superfamily 類似検索 - ドメイン・相同性 NADH-quinone oxidoreductase subunit E / NADH-quinone oxidoreductase subunit I / NADH-quinone oxidoreductase subunit F / NADH-quinone oxidoreductase subunit C/D / NADH-quinone oxidoreductase subunit G 類似検索 - 構成要素生物種 Escherichia coli B (大腸菌)手法 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度 : 2.1 Å 詳細 データ登録者Kolata P / Efremov RG 資金援助 ベルギー, 1件 詳細 詳細を隠すOrganization Grant number 国 European Research Council (ERC) 00281ROEF ベルギー
引用ジャーナル : Elife / 年 : 2021タイトル : Structure of respiratory complex I reconstituted into lipid nanodiscs reveals an uncoupled conformation.著者 : Piotr Kolata / Rouslan G Efremov / 要旨 : Respiratory complex I is a multi-subunit membrane protein complex that reversibly couples NADH oxidation and ubiquinone reduction with proton translocation against transmembrane potential. Complex I ... Respiratory complex I is a multi-subunit membrane protein complex that reversibly couples NADH oxidation and ubiquinone reduction with proton translocation against transmembrane potential. Complex I from is among the best functionally characterized complexes, but its structure remains unknown, hindering further studies to understand the enzyme coupling mechanism. Here, we describe the single particle cryo-electron microscopy (cryo-EM) structure of the entire catalytically active complex I reconstituted into lipid nanodiscs. The structure of this mesophilic bacterial complex I displays highly dynamic connection between the peripheral and membrane domains. The peripheral domain assembly is stabilized by unique terminal extensions and an insertion loop. The membrane domain structure reveals novel dynamic features. Unusual conformation of the conserved interface between the peripheral and membrane domains suggests an uncoupled conformation of the complex. Considering constraints imposed by the structural data, we suggest a new simple hypothetical coupling mechanism for the molecular machine. 履歴 登録 2021年3月23日 - ヘッダ(付随情報) 公開 2021年8月18日 - マップ公開 2021年8月18日 - 更新 2021年8月18日 - 現状 2021年8月18日 処理サイト : PDBe / 状態 : 公開
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