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- PDB-1umd: branched-chain 2-oxo acid dehydrogenase (E1) from Thermus thermop... -
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Open data
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Basic information
Entry | Database: PDB / ID: 1umd | |||||||||
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Title | branched-chain 2-oxo acid dehydrogenase (E1) from Thermus thermophilus HB8 with 4-methyl-2-oxopentanoate as an intermediate | |||||||||
![]() | (2-oxo acid dehydrogenase ...) x 2 | |||||||||
![]() | OXIDOREDUCTASE / alpha(2)beta(2) tetramer / structural genomics / RIKEN Structural Genomics/Proteomics Initiative / RSGI | |||||||||
Function / homology | ![]() 3-methyl-2-oxobutanoate dehydrogenase (2-methylpropanoyl-transferring) / 3-methyl-2-oxobutanoate dehydrogenase (2-methylpropanoyl-transferring) activity / branched-chain amino acid catabolic process / response to nutrient / metal ion binding Similarity search - Function | |||||||||
Biological species | ![]() ![]() | |||||||||
Method | ![]() ![]() ![]() | |||||||||
![]() | Nakai, T. / Nakagawa, N. / Maoka, N. / Masui, R. / Kuramitsu, S. / Kamiya, N. / RIKEN Structural Genomics/Proteomics Initiative (RSGI) | |||||||||
![]() | ![]() Title: Ligand-induced Conformational Changes and a Reaction Intermediate in Branched-chain 2-Oxo Acid Dehydrogenase (E1) from Thermus thermophilus HB8, as Revealed by X-ray Crystallography Authors: Nakai, T. / Nakagawa, N. / Maoka, N. / Masui, R. / Kuramitsu, S. / Kamiya, N. | |||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 306.6 KB | Display | ![]() |
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PDB format | ![]() | 242.1 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1 MB | Display | ![]() |
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Full document | ![]() | 1 MB | Display | |
Data in XML | ![]() | 62.8 KB | Display | |
Data in CIF | ![]() | 95.1 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 1um9C ![]() 1umbC ![]() 1umcC ![]() 1dtwS C: citing same article ( S: Starting model for refinement |
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Similar structure data | |
Other databases |
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Links
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Assembly
Deposited unit | ![]()
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1 |
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Unit cell |
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Details | The biological assembly is an alpha(2)beta(2) tetramer in the asymmetric unit. |
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Components
-2-oxo acid dehydrogenase ... , 2 types, 4 molecules ACBD
#1: Protein | Mass: 41508.023 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() References: UniProt: Q5SLR4, 3-methyl-2-oxobutanoate dehydrogenase (2-methylpropanoyl-transferring) #2: Protein | Mass: 35180.582 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() References: UniProt: Q5SLR3, 3-methyl-2-oxobutanoate dehydrogenase (2-methylpropanoyl-transferring) |
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-Non-polymers , 4 types, 1340 molecules ![](data/chem/img/MG.gif)
![](data/chem/img/TPP.gif)
![](data/chem/img/COI.gif)
![](data/chem/img/HOH.gif)
![](data/chem/img/TPP.gif)
![](data/chem/img/COI.gif)
![](data/chem/img/HOH.gif)
#3: Chemical | #4: Chemical | #5: Chemical | #6: Water | ChemComp-HOH / | |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 3.19 Å3/Da / Density % sol: 61.17 % |
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Crystal grow | Temperature: 291 K / Method: vapor diffusion, hanging drop / pH: 5.6 Details: lithium sulfate, sodium citrate, pH 5.6, VAPOR DIFFUSION, HANGING DROP, temperature 291K |
-Data collection
Diffraction | Mean temperature: 100 K |
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Diffraction source | Source: ![]() ![]() ![]() |
Detector | Type: RIGAKU RAXIS V / Detector: IMAGE PLATE / Date: Jul 7, 2002 |
Radiation | Monochromator: Si(111) / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 1.0718 Å / Relative weight: 1 |
Reflection | Resolution: 1.9→50 Å / Num. all: 167525 / Num. obs: 167525 / % possible obs: 99.2 % / Observed criterion σ(I): 0 / Redundancy: 4.7 % / Biso Wilson estimate: 12.1 Å2 / Rmerge(I) obs: 0.101 / Net I/σ(I): 8.7 |
Reflection shell | Resolution: 1.9→1.97 Å / Redundancy: 4 % / Rmerge(I) obs: 0.313 / Mean I/σ(I) obs: 1.8 / Num. unique all: 16506 / % possible all: 98.6 |
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Processing
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Refinement | Method to determine structure: ![]() Starting model: PDB ENTRY 1DTW Resolution: 1.9→19.99 Å / Rfactor Rfree error: 0.002 / Data cutoff high absF: 4618879.32 / Data cutoff low absF: 0 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0 / Stereochemistry target values: Engh & Huber
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Solvent computation | Solvent model: FLAT MODEL / Bsol: 55.4141 Å2 / ksol: 0.371797 e/Å3 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso mean: 19.8 Å2
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Refine analyze |
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Refinement step | Cycle: LAST / Resolution: 1.9→19.99 Å
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Refine LS restraints |
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LS refinement shell | Resolution: 1.9→2.02 Å / Rfactor Rfree error: 0.007 / Total num. of bins used: 6
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Xplor file |
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