6EEG
Crystal structure of Staphylcoccal nuclease variant Delta+PHS T62E 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 | 9 | 277 | 22% MPD, 25 mM potassium phosphate, calcium chloride, pdTp |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.43 | 44.44 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 31.037 | α = 90 |
b = 60.508 | β = 93.23 |
c = 38.184 | γ = 90 |
Symmetry | |
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Space Group | P 1 21 1 |
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 | mirrors | 2016-08-12 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SEALED TUBE | BRUKER IMUS MICROFOCUS | 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 | 1.95 | 38.12 | 100 | 0.0257 | 27.46 | 14.79 | 10364 | 28.22 |
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 | 1.95 | 1.98 | 100 | 0.1244 | 7.27 | 10.8 |
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 | PDB entry 3BDC | 1.95 | 38.12 | 9827 | 520 | 99.98 | 0.1746 | 0.1723 | 0.2186 | RANDOM | 22.347 |
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 | -0.01 | 0.01 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 34.563 |
r_dihedral_angle_3_deg | 14.636 |
r_dihedral_angle_4_deg | 12.221 |
r_dihedral_angle_1_deg | 6.791 |
r_angle_refined_deg | 1.959 |
r_angle_other_deg | 1.022 |
r_chiral_restr | 0.125 |
r_bond_refined_d | 0.019 |
r_gen_planes_refined | 0.01 |
r_bond_other_d | 0.002 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 1035 |
Nucleic Acid Atoms | |
Solvent Atoms | 82 |
Heterogen Atoms | 26 |
Software
Software | |
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Software Name | Purpose |
PHASER | phasing |
REFMAC | refinement |
PDB_EXTRACT | data extraction |
APEX 2 | data reduction |
SHELXPREP | data scaling |