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-基本情報
登録情報 | データベース: PDB / ID: 8ac3 | ||||||
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タイトル | Complex III2 from Yarrowia lipolytica, apo, int-position | ||||||
要素 |
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キーワード | MEMBRANE PROTEIN / oxidoreductase / electron transport chain | ||||||
機能・相同性 | 機能・相同性情報 mitochondrial processing peptidase complex / mitochondrial processing peptidase / matrix side of mitochondrial inner membrane / protein processing involved in protein targeting to mitochondrion / mitochondrial respiratory chain complex III assembly / : / quinol-cytochrome-c reductase / ubiquinol-cytochrome-c reductase activity / mitochondrial electron transport, ubiquinol to cytochrome c / mitochondrial crista ...mitochondrial processing peptidase complex / mitochondrial processing peptidase / matrix side of mitochondrial inner membrane / protein processing involved in protein targeting to mitochondrion / mitochondrial respiratory chain complex III assembly / : / quinol-cytochrome-c reductase / ubiquinol-cytochrome-c reductase activity / mitochondrial electron transport, ubiquinol to cytochrome c / mitochondrial crista / nuclear periphery / metalloendopeptidase activity / mitochondrial intermembrane space / 2 iron, 2 sulfur cluster binding / oxidoreductase activity / heme binding / mitochondrion / proteolysis / membrane / metal ion binding 類似検索 - 分子機能 | ||||||
生物種 | Yarrowia lipolytica (酵母) | ||||||
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: 2.8 Å | ||||||
データ登録者 | Wieferig, J.P. / Kuhlbrandt, W. | ||||||
資金援助 | ドイツ, 1件
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引用 | ジャーナル: IUCrJ / 年: 2023 タイトル: Analysis of the conformational heterogeneity of the Rieske iron-sulfur protein in complex III by cryo-EM. 著者: Jan Philip Wieferig / Werner Kühlbrandt / 要旨: Movement of the Rieske domain of the iron-sulfur protein is essential for intramolecular electron transfer within complex III (CIII) of the respiratory chain as it bridges a gap in the cofactor chain ...Movement of the Rieske domain of the iron-sulfur protein is essential for intramolecular electron transfer within complex III (CIII) of the respiratory chain as it bridges a gap in the cofactor chain towards the electron acceptor cytochrome c. We present cryo-EM structures of CIII from Yarrowia lipolytica at resolutions up to 2.0 Å under different conditions, with different redox states of the cofactors of the high-potential chain. All possible permutations of three primary positions were observed, indicating that the two halves of the dimeric complex act independently. Addition of the substrate analogue decylubiquinone to CIII with a reduced high-potential chain increased the occupancy of the Q site. The extent of Rieske domain interactions through hydrogen bonds to the cytochrome b and cytochrome c subunits varied depending on the redox state and substrate. In the absence of quinols, the reduced Rieske domain interacted more closely with cytochrome b and cytochrome c than in the oxidized state. Upon addition of the inhibitor antimycin A, the heterogeneity of the cd-helix and ef-loop increased, which may be indicative of a long-range effect on the Rieske domain. | ||||||
履歴 |
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-構造の表示
構造ビューア | 分子: MolmilJmol/JSmol |
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-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 8ac3.cif.gz | 839 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb8ac3.ent.gz | 666.4 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 8ac3.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 | 8ac3_validation.pdf.gz | 3.1 MB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 8ac3_full_validation.pdf.gz | 3.2 MB | 表示 | |
XML形式データ | 8ac3_validation.xml.gz | 128.4 KB | 表示 | |
CIF形式データ | 8ac3_validation.cif.gz | 186.5 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/ac/8ac3 ftp://data.pdbj.org/pub/pdb/validation_reports/ac/8ac3 | HTTPS FTP |
-関連構造データ
関連構造データ | 15332MC 8ab6C 8ab7C 8ab8C 8ab9C 8abaC 8abbC 8abeC 8abfC 8abgC 8abhC 8abiC 8abjC 8abkC 8ablC 8abmC 8ac4C 8ac5C M: このデータのモデリングに利用したマップデータ C: 同じ文献を引用 (文献) |
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類似構造データ | 類似検索 - 機能・相同性F&H 検索 |
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非結晶学的対称性 (NCS) | NCSドメイン:
NCSドメイン領域: Component-ID: _ / Refine code: _
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