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- PDB-4kbn: human dihydrofolate reductase complexed with NADPH and 5-{3-[3-(3... -
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Open data
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Basic information
Entry | Database: PDB / ID: 4kbn | ||||||
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Title | human dihydrofolate reductase complexed with NADPH and 5-{3-[3-(3,5-pyrimidine)]-phenyl-prop-1-yn-1-yl}-6-ethyl-pyrimidine-2,4diamine | ||||||
![]() | Dihydrofolate reductase | ||||||
![]() | OXIDOREDUCTASE/OXIDOREDUCTASE INHIBITOR / Oxidoreductase / 5 / 6 / 7 / 8-tetrahydrofolate / NADP+ / hydride shift / cytosol / OXIDOREDUCTASE-OXIDOREDUCTASE INHIBITOR complex | ||||||
Function / homology | ![]() regulation of removal of superoxide radicals / tetrahydrobiopterin biosynthetic process / Metabolism of folate and pterines / tetrahydrofolate metabolic process / sequence-specific mRNA binding / response to methotrexate / axon regeneration / folic acid binding / G1/S-Specific Transcription / dihydrofolate metabolic process ...regulation of removal of superoxide radicals / tetrahydrobiopterin biosynthetic process / Metabolism of folate and pterines / tetrahydrofolate metabolic process / sequence-specific mRNA binding / response to methotrexate / axon regeneration / folic acid binding / G1/S-Specific Transcription / dihydrofolate metabolic process / glycine biosynthetic process / dihydrofolate reductase / dihydrofolate reductase activity / folic acid metabolic process / NADPH binding / Tetrahydrobiopterin (BH4) synthesis, recycling, salvage and regulation / tetrahydrofolate biosynthetic process / mRNA regulatory element binding translation repressor activity / positive regulation of nitric-oxide synthase activity / one-carbon metabolic process / NADP binding / negative regulation of translation / mRNA binding / mitochondrion / cytosol Similarity search - Function | ||||||
Biological species | ![]() | ||||||
Method | ![]() ![]() | ||||||
![]() | Lamb, K.M. / Anderson, A.C. | ||||||
![]() | ![]() Title: Elucidating features that drive the design of selective antifolates using crystal structures of human dihydrofolate reductase. Authors: Lamb, K.M. / G-Dayanandan, N. / Wright, D.L. / Anderson, A.C. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 108.7 KB | Display | ![]() |
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PDB format | ![]() | 82.8 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1.5 MB | Display | ![]() |
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Full document | ![]() | 1.5 MB | Display | |
Data in XML | ![]() | 22.9 KB | Display | |
Data in CIF | ![]() | 31.9 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 4kakC ![]() 4kd7C ![]() 4kebC ![]() 4kfjC ![]() 2c2sS C: citing same article ( S: Starting model for refinement |
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Similar structure data |
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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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Unit cell |
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Components
-Protein , 1 types, 2 molecules AB
#1: Protein | Mass: 21349.525 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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-Non-polymers , 8 types, 381 molecules ![](data/chem/img/25U.gif)
![](data/chem/img/EOH.gif)
![](data/chem/img/CL.gif)
![](data/chem/img/MG.gif)
![](data/chem/img/NDP.gif)
![](data/chem/img/SR.gif)
![](data/chem/img/NH4.gif)
![](data/chem/img/HOH.gif)
![](data/chem/img/EOH.gif)
![](data/chem/img/CL.gif)
![](data/chem/img/MG.gif)
![](data/chem/img/NDP.gif)
![](data/chem/img/SR.gif)
![](data/chem/img/NH4.gif)
![](data/chem/img/HOH.gif)
#2: Chemical | #3: Chemical | #4: Chemical | ChemComp-CL / #5: Chemical | ChemComp-MG / #6: Chemical | #7: Chemical | ChemComp-SR / | #8: Chemical | ChemComp-NH4 / | #9: Water | ChemComp-HOH / | |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 2.31 Å3/Da / Density % sol: 46.8 % |
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Crystal grow | Temperature: 277 K / Method: vapor diffusion, hanging drop / pH: 7.5 Details: 0.1M Tris-HCl, 0.2-0.3M Li2SO4, 25-32% (w/v) PEG 4000, 8% (v/v) ethanol, 11mM MgCl2, 11mM SrCl2, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K |
-Data collection
Diffraction | Mean temperature: 100 K |
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Diffraction source | Source: ![]() |
Detector | Type: RIGAKU RAXIS IV / Detector: IMAGE PLATE / Date: Dec 2, 2011 / Details: Varimax optics |
Radiation | Monochromator: Copper anode / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 1.54178 Å / Relative weight: 1 |
Reflection | Resolution: 1.84→48 Å / Num. all: 34606 / Num. obs: 34606 / % possible obs: 100 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 4.2 % / Rmerge(I) obs: 0.071 / Net I/σ(I): 6.9 |
Reflection shell | Resolution: 1.84→1.91 Å / Redundancy: 4.11 % / Rmerge(I) obs: 0.317 / Mean I/σ(I) obs: 2.1 / % possible all: 100 |
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Processing
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Refinement | Method to determine structure: ![]() Starting model: 2C2S Resolution: 1.84→47.996 Å / SU ML: 0.29 / σ(F): 0.16 / Phase error: 30.89 / Stereochemistry target values: ML
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Solvent computation | Shrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement step | Cycle: LAST / Resolution: 1.84→47.996 Å
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Refine LS restraints |
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LS refinement shell |
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