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- PDB-7mym: Crystal structure of Escherichia coli dihydrofolate reductase in ... -
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Open data
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Basic information
Entry | Database: PDB / ID: 7mym | ||||||
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Title | Crystal structure of Escherichia coli dihydrofolate reductase in complex with TRIMETHOPRIM and NADPH | ||||||
![]() | Dihydrofolate reductase![]() | ||||||
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Function / homology | ![]() dihydrofolate metabolic process / glycine biosynthetic process / ![]() ![]() ![]() ![]() Similarity search - Function | ||||||
Biological species | ![]() ![]() ![]() | ||||||
Method | ![]() ![]() ![]() ![]() | ||||||
![]() | Erlandsen, H. / Wright, D. / Krucinska, J. | ||||||
Funding support | ![]()
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![]() | ![]() Title: Structure-guided functional studies of plasmid-encoded dihydrofolate reductases reveal a common mechanism of trimethoprim resistance in Gram-negative pathogens. Authors: Krucinska, J. / Lombardo, M.N. / Erlandsen, H. / Estrada, A. / Si, D. / Viswanathan, K. / Wright, D.L. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 117.3 KB | Display | ![]() |
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PDB format | ![]() | 90.2 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 7mqpC ![]() 7mylC ![]() 7naeC ![]() 7r6gC ![]() 7rebC ![]() 7regC ![]() 7rgjC ![]() 7rgkC ![]() 7rgoC ![]() 4psyS S: Starting model for refinement C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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1 | ![]()
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2 | ![]()
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3 | ![]()
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Unit cell |
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Components
-Protein , 1 types, 3 molecules ACB
#1: Protein | ![]() Mass: 18019.340 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
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-Non-polymers , 5 types, 25 molecules ![](data/chem/img/ARG.gif)
![](data/chem/img/NAP.gif)
![](data/chem/img/TOP.gif)
![](data/chem/img/SO4.gif)
![](data/chem/img/HOH.gif)
![](data/chem/img/NAP.gif)
![](data/chem/img/TOP.gif)
![](data/chem/img/SO4.gif)
![](data/chem/img/HOH.gif)
#2: Chemical | ![]() #3: Chemical | ![]() #4: Chemical | ![]() #5: Chemical | ChemComp-SO4 / ![]() #6: Water | ChemComp-HOH / | ![]() |
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-Details
Has ligand of interest | Y |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 3.72 Å3/Da / Density % sol: 66.92 % |
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Crystal grow![]() | Temperature: 277.15 K / Method: vapor diffusion, hanging drop Details: 18% to 20% PEG4000 or 8000, 0.2M ammonium sulfate and 2mM DTT. |
-Data collection
Diffraction | Mean temperature: 100 K / Serial crystal experiment: N |
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Diffraction source | Source: ![]() ![]() ![]() |
Detector | Type: DECTRIS EIGER X 9M / Detector: PIXEL / Date: Aug 21, 2020 |
Radiation | Monochromator: Double Crystal Monochromator, Si111 / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength![]() |
Reflection | Resolution: 3.04→56.76 Å / Num. obs: 15680 / % possible obs: 98.7 % / Redundancy: 6 % / Biso Wilson estimate: 45.81 Å2 / CC1/2: 0.94 / Rmerge(I) obs: 0.289 / Rpim(I) all: 0.127 / Rrim(I) all: 0.318 / Net I/σ(I): 3.9 |
Reflection shell | Resolution: 3.04→3.25 Å / Redundancy: 5.8 % / Rmerge(I) obs: 0.863 / Mean I/σ(I) obs: 1.9 / Num. unique obs: 16148 / CC1/2: 0.345 / Rpim(I) all: 0.416 / Rrim(I) all: 0.966 / % possible all: 98.1 |
-Phasing
Phasing![]() | Method: ![]() |
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Processing
Software |
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Refinement | Method to determine structure![]() ![]() Starting model: 4PSY Resolution: 3.04→56.76 Å / Cor.coef. Fo:Fc: 0.907 / Cor.coef. Fo:Fc free: 0.822 / SU B: 23.603 / SU ML: 0.406 / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R Free: 0.461 / Stereochemistry target values: MAXIMUM LIKELIHOOD Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS U VALUES : REFINED INDIVIDUALLY
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Solvent computation | Ion probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso max: 119.68 Å2 / Biso mean: 51.221 Å2 / Biso min: 20.75 Å2
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Refinement step | Cycle: final / Resolution: 3.04→56.76 Å
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Refine LS restraints |
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LS refinement shell | Resolution: 3.04→3.119 Å / Rfactor Rfree error: 0 / Total num. of bins used: 20
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