4OL7
Crystal structure of Staphylococcal nuclease variant Delta+PHS V66E A109E at cryogenic temperature
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 3BDC | PDB ENTRY 3BDC |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 6 | 277 | 30% MPD, 25 mM potassium phosphate, calcium chloride, pdTp, pH 6, VAPOR DIFFUSION, HANGING DROP, temperature 277K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.13 | 42.15 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 47.145 | α = 90 |
b = 54.159 | β = 90 |
c = 108.125 | γ = 90 |
Symmetry | |
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Space Group | P 21 21 21 |
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 | 110 | CCD | APEX II CCD | multi-layer optics | 2013-10-13 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SEALED TUBE | OTHER | 1.54 |
Data Collection
Overall | |||||||||||||||||||
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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 | 1.67 | 50 | 99.8 | 0.0257 | 29.33 | 13.02 | 32967 | 32967 | 22.1 |
Highest Resolution Shell | |||||||||||||||||||
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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 | 1.67 | 1.69 | 100 | 0.2281 | 4.37 | 5.57 | 1147 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (All) | R-Factor (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | ||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | PDB ENTRY 3BDC | 1.67 | 48.47 | 32906 | 32906 | 1669 | 99.97 | 0.1593 | 0.1593 | 0.1576 | 0.1907 | RANDOM | 14.816 |
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] | |
0.59 | -0.09 | -0.5 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 31.511 |
r_dihedral_angle_4_deg | 18.061 |
r_dihedral_angle_3_deg | 14.146 |
r_dihedral_angle_1_deg | 6.238 |
r_angle_refined_deg | 1.798 |
r_mcangle_it | 1.253 |
r_angle_other_deg | 0.797 |
r_mcbond_it | 0.779 |
r_mcbond_other | 0.778 |
r_chiral_restr | 0.116 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2157 |
Nucleic Acid Atoms | |
Solvent Atoms | 290 |
Heterogen Atoms | 52 |
Software
Software | |
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Software Name | Purpose |
SAINT | data scaling |
SAINT | data reduction |
PHASER | phasing |
REFMAC | refinement |
PDB_EXTRACT | data extraction |
APEX | data collection |