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- PDB-7d49: X-ray crystal Structure of E.coli Dihydrofolate Reductase complex... -
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Open data
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Basic information
Entry | Database: PDB / ID: 7d49 | |||||||||
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Title | X-ray crystal Structure of E.coli Dihydrofolate Reductase complexed with folate and NADP+ at pH4.5 | |||||||||
![]() | Dihydrofolate reductase | |||||||||
![]() | OXIDOREDUCTASE / dihydrofolate / reductase / alpha-beta sandiwitch / NADPH | |||||||||
Function / homology | ![]() methotrexate binding / dihydrofolic acid binding / response to methotrexate / NADP+ binding / folic acid binding / dihydrofolate metabolic process / glycine biosynthetic process / dihydrofolate reductase / dihydrofolate reductase activity / folic acid metabolic process ...methotrexate binding / dihydrofolic acid binding / response to methotrexate / NADP+ binding / folic acid binding / dihydrofolate metabolic process / glycine biosynthetic process / dihydrofolate reductase / dihydrofolate reductase activity / folic acid metabolic process / NADPH binding / tetrahydrofolate biosynthetic process / one-carbon metabolic process / NADP binding / response to xenobiotic stimulus / response to antibiotic / cytosol Similarity search - Function | |||||||||
Biological species | ![]() ![]() | |||||||||
Method | ![]() ![]() ![]() | |||||||||
Model details | X-ray diffraction | |||||||||
![]() | Wan, Q. / Dealwis, C. | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Capturing the Catalytic Proton of Dihydrofolate Reductase: Implications for General Acid-Base Catalysis Authors: Wan, Q. / Bennett, B.C. / Wymore, T. / Li, Z. / Wilson, M.A. / Brooks III, C.L. / Langan, P. / Kovalevsky, A. / Dealwis, C.G. | |||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 4.9 MB | Display | ![]() |
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PDB format | ![]() | 4.3 MB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1.6 MB | Display | ![]() |
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Full document | ![]() | 2 MB | Display | |
Data in XML | ![]() | 550.4 KB | Display | |
Data in CIF | ![]() | 575.7 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 7d3zC ![]() 7d4lC ![]() 7d4xC ![]() 7d6gC ![]() 1rx2S S: Starting model for refinement C: citing same article ( |
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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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Unit cell |
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Number of models | 80 |
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Components
#1: Protein | Mass: 18020.326 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: folA, tmrA, b0048, JW0047 / Plasmid: pET-sumo / Production host: ![]() ![]() |
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#2: Chemical | ChemComp-FOL / |
#3: Chemical | ChemComp-NAP / |
#4: Water | ChemComp-HOH / |
Has ligand of interest | Y |
-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 2.14 Å3/Da / Density % sol: 42.47 % / Description: long rectangular crystal |
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Crystal grow | Temperature: 291 K / Method: vapor diffusion, sitting drop / pH: 4.5 Details: 40mg/mL DHFR-folate-NADP+ complex, 12% (v/v) PEG 400, 100mM MnCl2, 100mM NaAc, pH4.5 |
-Data collection
Diffraction | Mean temperature: 291 K / Serial crystal experiment: N |
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Diffraction source | Source: ![]() |
Detector | Type: RIGAKU RAXIS IV++ / Detector: IMAGE PLATE / Date: Aug 10, 2014 |
Radiation | Monochromator: CHOPPER / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 1.5 Å / Relative weight: 1 |
Reflection | Resolution: 1.65→40 Å / Num. obs: 18163 / % possible obs: 93.9 % / Redundancy: 3.9 % / Rmerge(I) obs: 0.04 / Χ2: 0.96 / Net I/σ(I): 25.3 |
Reflection shell | Resolution: 1.65→1.75 Å / Rmerge(I) obs: 0.426 / Mean I/σ(I) obs: 2.5 / Num. unique obs: 2230 / Χ2: 0.88 |
-Phasing
Phasing | Method: ![]() |
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Processing
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Refinement | Method to determine structure: ![]() Starting model: 1rx2 Resolution: 1.651→27.309 Å / SU ML: 0.09 / Cross valid method: THROUGHOUT / σ(F): 1.38 / Phase error: 15.32 / Stereochemistry target values: ML
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Solvent computation | Shrinkage radii: 1 Å / VDW probe radii: 1.2 Å / Solvent model: FLAT BULK SOLVENT MODEL | ||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso min: 99999 Å2 | ||||||||||||||||||||||||||||||||||||||||||
Refinement step | Cycle: final / Resolution: 1.651→27.309 Å
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LS refinement shell | Refine-ID: X-RAY DIFFRACTION / Rfactor Rfree error: 0
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