7QOM
A mutant of the nitrile hydratase from Geobacillus pallidus having enhanced thermostability
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 6.5 | 295 | 30% PEG400, 100mM magnesium chloride, 100mM MES (2[N-Morpholino]ethanesulfonic acid), 10-40mg/ml protein, pH 6.5, vapor diffusion, hanging drop, temperature 295K |
Crystal Properties | |
---|---|
Matthews coefficient | Solvent content |
2.32 | 47.04 |
Crystal Data
Unit Cell | |
---|---|
Length ( Å ) | Angle ( ˚ ) |
a = 106.18 | α = 90 |
b = 106.18 | β = 90 |
c = 82.88 | γ = 90 |
Symmetry | |
---|---|
Space Group | P 41 21 2 |
Diffraction
Diffraction Experiment | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 110 | CCD | MARMOSAIC 225 mm CCD | mirrors | 2007-07-18 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | ESRF BEAMLINE BM14 | 0.979 | ESRF | BM14 |
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 | 1.45 | 44.69 | 99.8 | 0.038 | 13.5 | 3.7 | 310298 |
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) | |||||||||||
1 | 1.45 | 1.5 | 0.321 | 3 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | 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 | MOLECULAR REPLACEMENT | THROUGHOUT | 2dpp | 1.45 | 44.69 | 79484 | 4175 | 99.52 | 0.1444 | 0.1424 | 0.1843 | RANDOM | 15.001 |
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 | 0.11 | -0.22 |
RMS Deviations | |
---|---|
Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 34.526 |
r_dihedral_angle_4_deg | 18.588 |
r_dihedral_angle_3_deg | 12.87 |
r_dihedral_angle_1_deg | 5.382 |
r_rigid_bond_restr | 2.299 |
r_angle_refined_deg | 1.539 |
r_angle_other_deg | 1.009 |
r_chiral_restr | 0.121 |
r_bond_refined_d | 0.021 |
r_gen_planes_refined | 0.009 |
Non-Hydrogen Atoms Used in Refinement | |
---|---|
Non-Hydrogen Atoms | Number |
Protein Atoms | 3493 |
Nucleic Acid Atoms | |
Solvent Atoms | 427 |
Heterogen Atoms | 2 |
Software
Software | |
---|---|
Software Name | Purpose |
REFMAC | refinement |
d*TREK | data scaling |
PDB_EXTRACT | data extraction |
d*TREK | data reduction |
PHASER | phasing |