1VDR
DIHYDROFOLATE REDUCTASE
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
---|---|---|---|
Type | Source | Accession Code | Details |
experimental model | PDB | 4DFR | SUPERPOSITION OF 7 MODELS: 4DFR, 5DFR, 6DFR, 7DFR, 8DFR, 3DFR, MODELED HV-DHFR |
experimental model | PDB | 5DFR | SUPERPOSITION OF 7 MODELS: 4DFR, 5DFR, 6DFR, 7DFR, 8DFR, 3DFR, MODELED HV-DHFR |
experimental model | PDB | 6DFR | SUPERPOSITION OF 7 MODELS: 4DFR, 5DFR, 6DFR, 7DFR, 8DFR, 3DFR, MODELED HV-DHFR |
experimental model | PDB | 7DFR | SUPERPOSITION OF 7 MODELS: 4DFR, 5DFR, 6DFR, 7DFR, 8DFR, 3DFR, MODELED HV-DHFR |
experimental model | PDB | 8DFR | SUPERPOSITION OF 7 MODELS: 4DFR, 5DFR, 6DFR, 7DFR, 8DFR, 3DFR, MODELED HV-DHFR |
experimental model | PDB | 3DFR | SUPERPOSITION OF 7 MODELS: 4DFR, 5DFR, 6DFR, 7DFR, 8DFR, 3DFR, MODELED HV-DHFR |
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 7.9 | HANGING DROP VAPOR DIFFUSION. THE RESERVOIR SOLUTION CONTAINED 2.4M PHOSPHATE BUFFER (PH 7.8-8.0), 0.25-0.5% PEG 1000 AND 2MM METHOTREXATE. THE DROPS CONTAINED EQUAL VOLUMES OF RESERVOIR SOLUTION AND 10 MG/ML PROTEIN SOLUTION IN 0.1M PHOSPHATE BUFFER AT PH7.0., pH 7.9, vapor diffusion - hanging drop |
Crystal Properties | |
---|---|
Matthews coefficient | Solvent content |
2.27 | 45.91 |
Crystal Data
Unit Cell | |
---|---|
Length ( Å ) | Angle ( ˚ ) |
a = 70.87 | α = 90 |
b = 59.45 | β = 95.8 |
c = 78.15 | γ = 90 |
Symmetry | |
---|---|
Space Group | C 1 2 1 |
Diffraction
Diffraction Experiment | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 295 | AREA DETECTOR | SIEMENS | COLLIMATOR | 1990-01-09 | M |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | ROTATING ANODE | RIGAKU RUH2R |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge 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 | 2.55 | 50 | 98 | 0.073 | 18.2 | 2.8 | 10496 | -3 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
2.55 | 2.71 | 89 | 0.271 | 2.4 | 1.7 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | 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 | MOLECULAR REPLACEMENT | THROUGHOUT | SUPERPOSITION OF 7 MODELS: 4DFR, 5DFR, 6DFR, 7DFR, 8DFR, 3DFR, MODELED HV-DHFR | 2.55 | 7 | 2 | 7800 | 794 | 75 | 0.184 | 0.184 | 0.3 | RANDOM | 26 |
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] | |
RMS Deviations | |
---|---|
Key | Refinement Restraint Deviation |
x_angle_deg | 3.2 |
x_bond_d | 0.013 |
x_bond_d_na | |
x_bond_d_prot | |
x_angle_d | |
x_angle_d_na | |
x_angle_d_prot | |
x_angle_deg_na | |
x_angle_deg_prot | |
x_dihedral_angle_d |
Non-Hydrogen Atoms Used in Refinement | |
---|---|
Non-Hydrogen Atoms | Number |
Protein Atoms | 2406 |
Nucleic Acid Atoms | |
Solvent Atoms | 80 |
Heterogen Atoms | 15 |
Software
Software | |
---|---|
Software Name | Purpose |
X-PLOR | model building |
X-PLOR | refinement |
XENGEN | data reduction |
XENGEN | data scaling |
X-PLOR | phasing |