1DRA
CRYSTAL STRUCTURE OF UNLIGANDED ESCHERICHIA COLI DIHYDROFOLATE REDUCTASE. LIGAND-INDUCED CONFORMATIONAL CHANGES AND COOPERATIVITY IN BINDING
X-RAY DIFFRACTION
Crystallization
Crystal Properties | |
---|---|
Matthews coefficient | Solvent content |
2.55 | 51.77 |
Crystal Data
Unit Cell | |
---|---|
Length ( Å ) | Angle ( ˚ ) |
a = 92.79 | α = 90 |
b = 92.79 | β = 90 |
c = 74.06 | γ = 120 |
Symmetry | |
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Space Group | P 61 |
Diffraction
Diffraction Experiment | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Resolution (High) | Resolution (Low) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work | R-Free | Mean Isotropic B | |||||||||
X-RAY DIFFRACTION | 1.9 | 5 | 26188 | 0.153 |
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 |
p_orthonormal_tor | 18.7 |
p_staggered_tor | 17.4 |
p_planar_tor | 5.8 |
p_scangle_it | 5.025 |
p_mcangle_it | 3.434 |
p_scbond_it | 3.122 |
p_mcbond_it | 2.286 |
p_multtor_nbd | 0.224 |
p_chiral_restr | 0.21 |
p_xhyhbond_nbd | 0.206 |
Non-Hydrogen Atoms Used in Refinement | |
---|---|
Non-Hydrogen Atoms | Number |
Protein Atoms | 2510 |
Nucleic Acid Atoms | |
Solvent Atoms | 426 |
Heterogen Atoms | 69 |
Software
Software | |
---|---|
Software Name | Purpose |
PROLSQ | refinement |