4RSG
Neutron crystal structure of Ras bound to the GTP analogue GppNHp
NEUTRON DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 7.5 | 291 | 18mg/mL protein, 0.2M calcium acetate, 20% PEG 3350, 20mM HEPES, 50mM NaCl, 20mM MgCl2, 0.1% N-octy-B-D-glucopyranoside, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 291K |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 40.084 | α = 90 |
b = 40.084 | β = 90 |
c = 160.785 | γ = 120 |
Symmetry | |
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Space Group | P 32 2 1 |
Diffraction
Diffraction Experiment | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | neutron | 293 | IMAGE PLATE | FUJI | 2014-05-09 | L | LAUE |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | NUCLEAR REACTOR | ORNL High Flux Isotope Reactor BEAMLINE CG4D | 3.3-4.5 | ORNL High Flux Isotope Reactor | CG4D |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | R Sym 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 | 1.899 | 17.01 | 82.1 | 0.262 | 0.262 | 5.6 | 6.2 | 9888 | 9888 | 8.61 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | R-Sym I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||
1 | 1.899 | 2 | 60.4 | 0.379 | 0.379 | 1.9 | 3 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work | R-Free | Mean Isotropic B | |||||||
NEUTRON DIFFRACTION | MOLECULAR REPLACEMENT | 1.907 | 17.009 | 1.41 | 9882 | 9882 | 1003 | 79.61 | 0.253 | 0.2492 | 0.2875 | 16.4865 |
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 | |
---|---|
Key | Refinement Restraint Deviation |
f_dihedral_angle_d | 18.327 |
f_angle_d | 0.872 |
f_chiral_restr | 0.036 |
f_bond_d | 0.014 |
f_plane_restr | 0.003 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 1207 |
Nucleic Acid Atoms | |
Solvent Atoms | 75 |
Heterogen Atoms | 33 |
Software
Software | |
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Software Name | Purpose |
SCALA | data scaling |
PHENIX | refinement |
PDB_EXTRACT | data extraction |
Quasi-Laue | data collection |
LAUEGEN | data reduction |
PHENIX | phasing |