- EMDB-9610: Respiratory Complex CIII2CIV2SOD2 from Mycobacterium smegmatis -
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Basic information
Entry
Database: EMDB / ID: EMD-9610
Title
Respiratory Complex CIII2CIV2SOD2 from Mycobacterium smegmatis
Map data
Sample
Complex: Superoxide dismutase in complex with bcc-aa3 type CIII-CIV supercomplex from Mycobacterium smegmatis
Protein or peptide: x 12 types
Ligand: x 11 types
Function / homology
Function and homology information
aerobic electron transport chain / cytochrome-c oxidase / oxidative phosphorylation / quinol-cytochrome-c reductase / ubiquinol-cytochrome-c reductase activity / cytochrome-c oxidase activity / superoxide dismutase / superoxide dismutase activity / : / electron transport coupled proton transport ...aerobic electron transport chain / cytochrome-c oxidase / oxidative phosphorylation / quinol-cytochrome-c reductase / ubiquinol-cytochrome-c reductase activity / cytochrome-c oxidase activity / superoxide dismutase / superoxide dismutase activity / : / electron transport coupled proton transport / ATP synthesis coupled electron transport / aerobic respiration / respiratory electron transport chain / electron transport chain / 2 iron, 2 sulfur cluster binding / membrane => GO:0016020 / oxidoreductase activity / iron ion binding / copper ion binding / heme binding / membrane / metal ion binding / plasma membrane Similarity search - Function
Protein of unknown function DUF2631 / Protein of unknown function (DUF2631) / Protein of unknown function DUF5130 / Domain of unknown function (DUF5130) / : / Cytochrome bc1 complex, cytochrome c subunit / Cytochrome c oxidase subunit IV, actinobacteria / QcrA subunit, N-terminal / Cytochrome c oxidase subunit IV / QcrA subunit N-terminal region ...Protein of unknown function DUF2631 / Protein of unknown function (DUF2631) / Protein of unknown function DUF5130 / Domain of unknown function (DUF5130) / : / Cytochrome bc1 complex, cytochrome c subunit / Cytochrome c oxidase subunit IV, actinobacteria / QcrA subunit, N-terminal / Cytochrome c oxidase subunit IV / QcrA subunit N-terminal region / Cytochrome b(N-terminal)/b6/petB / Cytochrome c oxidase, subunit I bacterial type / Cytochrome C oxidase, cbb3-type, subunit III / Cytochrome c oxidase subunit III / Cytochrome c oxidase subunit III-like / Cytochrome c oxidase, subunit III, 4-helical bundle / Cytochrome c oxidase subunit III / Heme-copper oxidase subunit III family profile. / Cytochrome c oxidase subunit III-like superfamily / Cytochrome c/quinol oxidase subunit II / Superoxide dismutase, copper/zinc, binding site / Copper/Zinc superoxide dismutase signature 2. / Superoxide dismutase, copper/zinc binding domain / Copper/zinc superoxide dismutase (SODC) / Superoxide dismutase (Cu/Zn) / superoxide dismutase copper chaperone / Superoxide dismutase-like, copper/zinc binding domain superfamily / Copper centre Cu(A) / CO II and nitrous oxide reductase dinuclear copper centers signature. / Cytochrome C oxidase subunit II, transmembrane domain superfamily / Cytochrome c oxidase, subunit I, copper-binding site / Heme-copper oxidase catalytic subunit, copper B binding region signature. / Cytochrome c oxidase-like, subunit I domain / Cytochrome oxidase subunit I profile. / Cytochrome c oxidase subunit I / Cytochrome c oxidase-like, subunit I superfamily / Cytochrome C and Quinol oxidase polypeptide I / Cytochrome b/b6, N-terminal / Cytochrome b/b6-like domain superfamily / Cytochrome b/b6 N-terminal region profile. / Di-haem cytochrome, transmembrane / Cytochrome C oxidase subunit II, periplasmic domain / Cytochrome c oxidase subunit II-like C-terminal / Cytochrome oxidase subunit II copper A binding domain profile. / Rieske iron-sulphur protein / Cytochrome c / Rieske [2Fe-2S] iron-sulphur domain / Rieske [2Fe-2S] domain / Rieske [2Fe-2S] iron-sulfur domain profile. / Rieske [2Fe-2S] iron-sulphur domain superfamily / Cytochrome c family profile. / Cytochrome c-like domain / Cytochrome c-like domain superfamily / Cupredoxin / Prokaryotic membrane lipoprotein lipid attachment site profile. Similarity search - Domain/homology
Cytochrome c oxidase subunit 1 / Superoxide dismutase [Cu-Zn] / Transmembrane protein / Probable cytochrome c oxidase subunit 3 / Cytochrome bc1 complex cytochrome b subunit / Cytochrome c oxidase polypeptide 4 / cytochrome-c oxidase / Uncharacterized protein MSMEG_4692/MSMEI_4575 / Uncharacterized protein / LpqE protein ...Cytochrome c oxidase subunit 1 / Superoxide dismutase [Cu-Zn] / Transmembrane protein / Probable cytochrome c oxidase subunit 3 / Cytochrome bc1 complex cytochrome b subunit / Cytochrome c oxidase polypeptide 4 / cytochrome-c oxidase / Uncharacterized protein MSMEG_4692/MSMEI_4575 / Uncharacterized protein / LpqE protein / Cytochrome bc1 complex cytochrome c subunit / Cytochrome bc1 complex Rieske iron-sulfur subunit Similarity search - Component
Biological species
Mycobacterium smegmatis MC2 51 (bacteria)
Method
single particle reconstruction / cryo EM / Resolution: 3.5 Å
Journal: Science / Year: 2018 Title: An electron transfer path connects subunits of a mycobacterial respiratory supercomplex. Authors: Hongri Gong / Jun Li / Ao Xu / Yanting Tang / Wenxin Ji / Ruogu Gao / Shuhui Wang / Lu Yu / Changlin Tian / Jingwen Li / Hsin-Yung Yen / Sin Man Lam / Guanghou Shui / Xiuna Yang / Yuna Sun / ...Authors: Hongri Gong / Jun Li / Ao Xu / Yanting Tang / Wenxin Ji / Ruogu Gao / Shuhui Wang / Lu Yu / Changlin Tian / Jingwen Li / Hsin-Yung Yen / Sin Man Lam / Guanghou Shui / Xiuna Yang / Yuna Sun / Xuemei Li / Minze Jia / Cheng Yang / Biao Jiang / Zhiyong Lou / Carol V Robinson / Luet-Lok Wong / Luke W Guddat / Fei Sun / Quan Wang / Zihe Rao / Abstract: We report a 3.5-angstrom-resolution cryo-electron microscopy structure of a respiratory supercomplex isolated from It comprises a complex III dimer flanked on either side by individual complex IV ...We report a 3.5-angstrom-resolution cryo-electron microscopy structure of a respiratory supercomplex isolated from It comprises a complex III dimer flanked on either side by individual complex IV subunits. Complex III and IV associate so that electrons can be transferred from quinol in complex III to the oxygen reduction center in complex IV by way of a bridging cytochrome subunit. We observed a superoxide dismutase-like subunit at the periplasmic face, which may be responsible for detoxification of superoxide formed by complex III. The structure reveals features of an established drug target and provides a foundation for the development of treatments for human tuberculosis.
History
Deposition
Aug 1, 2018
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Header (metadata) release
Nov 14, 2018
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Map release
Nov 14, 2018
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Update
Nov 6, 2019
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Current status
Nov 6, 2019
Processing site: PDBj / Status: Released
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Structure visualization
Movie
Surface view with section colored by density value
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