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Yorodumi- PDB-3jd1: Glutamate dehydrogenase in complex with NADH, closed conformation -
+Open data
-Basic information
Entry | Database: PDB / ID: 3jd1 | ||||||
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Title | Glutamate dehydrogenase in complex with NADH, closed conformation | ||||||
Components | Glutamate dehydrogenase 1, mitochondrial | ||||||
Keywords | OXIDOREDUCTASE / glutamate metabolism / mitochondria | ||||||
Function / homology | Function and homology information glutamate dehydrogenase [NAD(P)+] activity / glutamate catabolic process / tricarboxylic acid metabolic process / glutamate dehydrogenase [NAD(P)+] / glutamate dehydrogenase (NADP+) activity / glutamate dehydrogenase (NAD+) activity / glutamine metabolic process / mitochondrial inner membrane / GTP binding / endoplasmic reticulum ...glutamate dehydrogenase [NAD(P)+] activity / glutamate catabolic process / tricarboxylic acid metabolic process / glutamate dehydrogenase [NAD(P)+] / glutamate dehydrogenase (NADP+) activity / glutamate dehydrogenase (NAD+) activity / glutamine metabolic process / mitochondrial inner membrane / GTP binding / endoplasmic reticulum / mitochondrion / ATP binding / identical protein binding Similarity search - Function | ||||||
Biological species | Bos taurus (cattle) | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.3 Å | ||||||
Authors | Borgnia, M.J. / Banerjee, S. / Merk, A. / Matthies, D. / Bartesaghi, A. / Rao, P. / Pierson, J. / Earl, L.A. / Falconieri, V. / Subramaniam, S. / Milne, J.L.S. | ||||||
Citation | Journal: Mol Pharmacol / Year: 2016 Title: Using Cryo-EM to Map Small Ligands on Dynamic Metabolic Enzymes: Studies with Glutamate Dehydrogenase. Authors: Mario J Borgnia / Soojay Banerjee / Alan Merk / Doreen Matthies / Alberto Bartesaghi / Prashant Rao / Jason Pierson / Lesley A Earl / Veronica Falconieri / Sriram Subramaniam / Jacqueline L S Milne / Abstract: Cryo-electron microscopy (cryo-EM) methods are now being used to determine structures at near-atomic resolution and have great promise in molecular pharmacology, especially in the context of mapping ...Cryo-electron microscopy (cryo-EM) methods are now being used to determine structures at near-atomic resolution and have great promise in molecular pharmacology, especially in the context of mapping the binding of small-molecule ligands to protein complexes that display conformational flexibility. We illustrate this here using glutamate dehydrogenase (GDH), a 336-kDa metabolic enzyme that catalyzes the oxidative deamination of glutamate. Dysregulation of GDH leads to a variety of metabolic and neurologic disorders. Here, we report near-atomic resolution cryo-EM structures, at resolutions ranging from 3.2 Å to 3.6 Å for GDH complexes, including complexes for which crystal structures are not available. We show that the binding of the coenzyme NADH alone or in concert with GTP results in a binary mixture in which the enzyme is in either an "open" or "closed" state. Whereas the structure of NADH in the active site is similar between the open and closed states, it is unexpectedly different at the regulatory site. Our studies thus demonstrate that even in instances when there is considerable structural information available from X-ray crystallography, cryo-EM methods can provide useful complementary insights into regulatory mechanisms for dynamic protein complexes. | ||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | Molecule: MolmilJmol/JSmol |
-Downloads & links
-Download
PDBx/mmCIF format | 3jd1.cif.gz | 547.5 KB | Display | PDBx/mmCIF format |
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PDB format | pdb3jd1.ent.gz | 456.8 KB | Display | PDB format |
PDBx/mmJSON format | 3jd1.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 3jd1_validation.pdf.gz | 1.8 MB | Display | wwPDB validaton report |
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Full document | 3jd1_full_validation.pdf.gz | 1.9 MB | Display | |
Data in XML | 3jd1_validation.xml.gz | 90.3 KB | Display | |
Data in CIF | 3jd1_validation.cif.gz | 127.9 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/jd/3jd1 ftp://data.pdbj.org/pub/pdb/validation_reports/jd/3jd1 | HTTPS FTP |
-Related structure data
Related structure data | 6634MC 6630C 6631C 6632C 6633C 6635C 3jczC 3jd0C 3jd2C 3jd3C 3jd4C M: map data used to model this data C: citing same article (ref.) |
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Similar structure data |
-Links
-Assembly
Deposited unit |
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1 |
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-Components
#1: Protein | Mass: 55802.258 Da / Num. of mol.: 6 / Fragment: UNP residues 58-558 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) References: UniProt: P00366, glutamate dehydrogenase [NAD(P)+] #2: Chemical | ChemComp-NAI / |
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-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-Sample preparation
Component |
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Molecular weight | Value: 0.344 MDa / Experimental value: NO | |||||||||||||||
Buffer solution | Name: 100 mM potassium phosphate, 0.1% n-octyl glucopyranoside, 20 mM NADH pH: 6.8 Details: 100 mM potassium phosphate, 0.1% n-octyl glucopyranoside, 20 mM NADH | |||||||||||||||
Specimen | Conc.: 2 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | |||||||||||||||
Specimen support | Details: 200 mesh Quantifoil R2/2 grids (Quantifoil Micro Tools) | |||||||||||||||
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Temp: 90 K / Humidity: 90 % Details: Blot for 3-6 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV). Method: blot for 3-6 seconds before plunging |
-Electron microscopy imaging
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS / Date: Nov 23, 2014 |
Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
Electron lens | Mode: BRIGHT FIELD / Calibrated magnification: 73964 X / Nominal defocus max: 3000 nm / Nominal defocus min: 1000 nm / Cs: 2.7 mm |
Specimen holder | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Electron dose: 45 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
EM imaging optics | Energyfilter name: GIF Quantum / Energyfilter upper: 20 eV / Energyfilter lower: 0 eV |
Image scans | Num. digital images: 1588 |
-Processing
EM software |
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CTF correction | Details: Each micrograph | ||||||||||||||||||||||||||||||||
Symmetry | Point symmetry: D3 (2x3 fold dihedral) | ||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 3.3 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 34926 / Nominal pixel size: 0.676 Å / Actual pixel size: 0.676 Å / Details: (Single particle--Applied symmetry: D3) / Symmetry type: POINT | ||||||||||||||||||||||||||||||||
Atomic model building | Protocol: FLEXIBLE FIT / Space: REAL / Details: REFINEMENT PROTOCOL--flexible | ||||||||||||||||||||||||||||||||
Atomic model building | PDB-ID: 3MW9 3mw9 Pdb chain-ID: A / Accession code: 3MW9 / Source name: PDB / Type: experimental model | ||||||||||||||||||||||||||||||||
Refinement step | Cycle: LAST
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Refine LS restraints |
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