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Yorodumi- PDB-8p5x: Single particle cryo-EM structure of the complex between Coryneba... -
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-Basic information
Entry | Database: PDB / ID: 8p5x | |||||||||
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Title | Single particle cryo-EM structure of the complex between Corynebacterium glutamicum homohexameric 2-oxoglutarate dehydrogenase OdhA and the FHA-protein inhibitor OdhI | |||||||||
Components |
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Keywords | OXIDOREDUCTASE / 2-oxoglutarate dehydrogenase / ODH | |||||||||
Function / homology | Function and homology information oxoglutarate dehydrogenase (succinyl-transferring) / oxoglutarate dehydrogenase (succinyl-transferring) activity / dihydrolipoyllysine-residue succinyltransferase / dihydrolipoyllysine-residue succinyltransferase activity / thiamine pyrophosphate binding / tricarboxylic acid cycle / magnesium ion binding / cytoplasm Similarity search - Function | |||||||||
Biological species | Corynebacterium glutamicum ATCC 13032 (bacteria) | |||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.29 Å | |||||||||
Authors | Yang, L. / Mechaly, A.M. / Bellinzoni, M. | |||||||||
Funding support | France, 2items
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Citation | Journal: Nat Commun / Year: 2023 Title: High resolution cryo-EM and crystallographic snapshots of the actinobacterial two-in-one 2-oxoglutarate dehydrogenase. Authors: Lu Yang / Tristan Wagner / Ariel Mechaly / Alexandra Boyko / Eduardo M Bruch / Daniela Megrian / Francesca Gubellini / Pedro M Alzari / Marco Bellinzoni / Abstract: Actinobacteria possess unique ways to regulate the oxoglutarate metabolic node. Contrary to most organisms in which three enzymes compose the 2-oxoglutarate dehydrogenase complex (ODH), ...Actinobacteria possess unique ways to regulate the oxoglutarate metabolic node. Contrary to most organisms in which three enzymes compose the 2-oxoglutarate dehydrogenase complex (ODH), actinobacteria rely on a two-in-one protein (OdhA) in which both the oxidative decarboxylation and succinyl transferase steps are carried out by the same polypeptide. Here we describe high-resolution cryo-EM and crystallographic snapshots of representative enzymes from Mycobacterium smegmatis and Corynebacterium glutamicum, showing that OdhA is an 800-kDa homohexamer that assembles into a three-blade propeller shape. The obligate trimeric and dimeric states of the acyltransferase and dehydrogenase domains, respectively, are critical for maintaining the overall assembly, where both domains interact via subtle readjustments of their interfaces. Complexes obtained with substrate analogues, reaction products and allosteric regulators illustrate how these domains operate. Furthermore, we provide additional insights into the phosphorylation-dependent regulation of this enzymatic machinery by the signalling protein OdhI. #1: Journal: Biorxiv / Year: 2023 Title: High resolution cryo-EM and crystallographic snapshots of the large actinobacterial 2-oxoglutarate dehydrogenase: an all-in-one fusion with unique properties Authors: Yang, L. / Wagner, T. / Mechaly, A. / Boyko, A. / Bruch, E.M. / Megrian, D. / Gubellini, F. / Alzari, P.M. / Bellinzoni, M. | |||||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 8p5x.cif.gz | 1.3 MB | Display | PDBx/mmCIF format |
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PDB format | pdb8p5x.ent.gz | 1.1 MB | Display | PDB format |
PDBx/mmJSON format | 8p5x.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 8p5x_validation.pdf.gz | 1.4 MB | Display | wwPDB validaton report |
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Full document | 8p5x_full_validation.pdf.gz | 1.4 MB | Display | |
Data in XML | 8p5x_validation.xml.gz | 161.5 KB | Display | |
Data in CIF | 8p5x_validation.cif.gz | 263.8 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/p5/8p5x ftp://data.pdbj.org/pub/pdb/validation_reports/p5/8p5x | HTTPS FTP |
-Related structure data
Related structure data | 17456MC 8p5rC 8p5sC 8p5tC 8p5uC 8p5vC 8p5wC M: map data used to model this data C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
-Assembly
Deposited unit |
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Noncrystallographic symmetry (NCS) | NCS domain:
NCS domain segments: Component-ID: _ / End auth comp-ID: ALA / End label comp-ID: ALA / Refine code: _
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