3JTW
Crystal structure of Putative dihydrofolate reductase (YP_805003.1) from PEDIOCOCCUS PENTOSACEUS ATCC 25745 at 1.90 A resolution
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 4.9 | 277 | 2.0000M (NH4)2SO4, 5.0000% iso-Propanol, 0.1M Citrate pH 4.9, NANODROP, VAPOR DIFFUSION, SITTING DROP, temperature 277K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.28 | 46.02 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 69.759 | α = 90 |
b = 83.314 | β = 90 |
c = 65.059 | γ = 90 |
Symmetry | |
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Space Group | P 21 21 2 |
Diffraction
Diffraction Experiment | ||||||||||||||
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ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 100 | CCD | MARMOSAIC 325 mm CCD | Flat mirror, vertical and horizontal focussing mirrors | 2009-05-20 | M | MAD |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SSRL BEAMLINE BL12-2 | 0.91162,0.97943,0.97959 | SSRL | BL12-2 |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | R Sym I (Observed) | Net I Over Average Sigma (I) | Redundancy | Number Reflections (All) | Number Reflections (Observed) | Observed Criterion Sigma (F) | Observed Criterion Sigma (I) | B (Isotropic) From Wilson Plot | |||||||
1 | 1.9 | 29.476 | 99.8 | 0.107 | 0.107 | 8.5 | 4 | 30501 | 20.63 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | R-Sym I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||
1 | 1.9 | 1.95 | 100 | 0.598 | 0.598 | 1.2 | 4 | 2227 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | |||||||
X-RAY DIFFRACTION | MAD | THROUGHOUT | 1.9 | 29.476 | 30477 | 1539 | 99.69 | 0.184 | 0.182 | 0.225 | RANDOM | 26.844 |
Temperature Factor Modeling | ||||||
---|---|---|---|---|---|---|
Anisotropic B[1][1] | Anisotropic B[1][2] | Anisotropic B[1][3] | Anisotropic B[2][2] | Anisotropic B[2][3] | Anisotropic B[3][3] | |
-0.11 | 1.59 | -1.48 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 34.681 |
r_dihedral_angle_4_deg | 18.018 |
r_dihedral_angle_3_deg | 15.287 |
r_dihedral_angle_1_deg | 6.402 |
r_scangle_it | 4.445 |
r_scbond_it | 3.402 |
r_mcangle_it | 2.643 |
r_mcbond_it | 2.032 |
r_angle_refined_deg | 1.569 |
r_angle_other_deg | 0.966 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2814 |
Nucleic Acid Atoms | |
Solvent Atoms | 207 |
Heterogen Atoms | 33 |
Software
Software | |
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Software Name | Purpose |
REFMAC | refinement |
PHENIX | refinement |
SOLVE | phasing |
MolProbity | model building |
SCALA | data scaling |
PDB_EXTRACT | data extraction |
MOSFLM | data reduction |