4K14
Crystal Structure of Staphylococcal nuclease mutant V66I/V99L
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 7.5 | 277 | 50mM phosphate buffer,pH 7.5 45% MPD, VAPOR DIFFUSION, HANGING DROP, temperature 277K |
Crystal Properties | |
---|---|
Matthews coefficient | Solvent content |
2.31 | 46.84 |
Crystal Data
Unit Cell | |
---|---|
Length ( Å ) | Angle ( ˚ ) |
a = 47.45 | α = 90 |
b = 47.45 | β = 90 |
c = 63.87 | γ = 90 |
Symmetry | |
---|---|
Space Group | P 41 |
Diffraction
Diffraction Experiment | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 298 | DIFFRACTOMETER | RIGAKU AFC9 | mirrors | 2011-05-02 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | ROTATING ANODE | RIGAKU MICROMAX-007 | 1.5418 |
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 | 1.6 | 21.22 | 84 | 0.033 | 12.4 | 2 | 31504 | 15733 |
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 | MOLECULAR REPLACEMENT | THROUGHOUT | 1.601 | 20.14 | 14921 | 801 | 84.09 | 0.20971 | 0.20747 | 0.25152 | RANDOM | 36.794 |
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] | |
0.03 | 0.03 | -0.06 |
RMS Deviations | |
---|---|
Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 35.553 |
r_dihedral_angle_4_deg | 17.399 |
r_dihedral_angle_3_deg | 17.264 |
r_dihedral_angle_1_deg | 6.184 |
r_scangle_it | 4.822 |
r_scbond_it | 3.048 |
r_mcangle_it | 2.047 |
r_angle_refined_deg | 1.539 |
r_mcbond_it | 1.253 |
r_nbtor_refined | 0.303 |
Non-Hydrogen Atoms Used in Refinement | |
---|---|
Non-Hydrogen Atoms | Number |
Protein Atoms | 1093 |
Nucleic Acid Atoms | |
Solvent Atoms | 79 |
Heterogen Atoms |
Software
Software | |
---|---|
Software Name | Purpose |
CrystalClear | data collection |
CCP4 | model building |
REFMAC | refinement |
d*TREK | data reduction |
d*TREK | data scaling |
CCP4 | phasing |