7Q7A
Room temperature structure of RNase A at 120 MPa helium gas pressure in a sapphire capillary
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 2E3W |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 4.5 | 295 | 10-20 mg/ml protein dissolved in 0.1 M sodium acetate pH 4.5 was mixed in a 1:1 ratio with precipitant containing 0.1 M sodium acetate pH 4.5, 1.2-1.5 M ammonium sulphate and 2-2.5 M sodium chloride and equilibrated for one to two days at room temperature. |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.81 | 56.3 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 64.28 | α = 90 |
b = 64.28 | β = 90 |
c = 64.69 | γ = 120 |
Symmetry | |
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Space Group | P 32 2 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 | 295 | PIXEL | DECTRIS PILATUS3 X CdTe 2M | 2019-09-26 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | PETRA III, DESY BEAMLINE P11 | 0.477 | PETRA III, DESY | P11 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Rpim I (All) | CC (Half) | 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 | 1.56 | 27.97 | 98.66 | 0.144 | 0.057 | 0.993 | 6.7 | 6.8 | 22159 | 20.96 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Rpim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||
1 | 1.56 | 1.62 | 99.33 | 1.913 | 0.795 | 0.374 | 1 | 6.6 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work | R-Free | Mean Isotropic B | ||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | FREE R-VALUE | 2E3W | 1.56 | 27.97 | 1.34 | 22153 | 1742 | 98.68 | 0.1577 | 0.1551 | 0.1898 | 33.18 |
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 | |
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Key | Refinement Restraint Deviation |
f_dihedral_angle_d | 11.9153 |
f_angle_d | 0.964 |
f_chiral_restr | 0.0487 |
f_bond_d | 0.0073 |
f_plane_restr | 0.0064 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 951 |
Nucleic Acid Atoms | |
Solvent Atoms | 96 |
Heterogen Atoms | 14 |
Software
Software | |
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Software Name | Purpose |
Coot | model building |
PHENIX | refinement |
XDS | data reduction |
XSCALE | data scaling |
PHASER | phasing |