5KYK
Covalent GTP-competitive inhibitors of KRAS G12C: Guanosine bisphosphonate Analogs
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 4NMM |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | EVAPORATION | 293 | Protein was purified in buffer: 20 mM Hepes pH 8.0, 150 mM NaCl, 5 mM MgCl2 and 0.5 mM DTT. Crystals grew in five days at room temperature from hanging vapor diffusion drops with following condition: 0.1 M Citric acid pH 4.0, 20% PEG 3350. Crystals were cryoprotected in mother liquid with 40% PEG 3350 and flash frozen in liquid nitrogen. |
Crystal Properties | |
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Matthews coefficient | Solvent content |
3.01 | 59.19 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 114.83 | α = 90 |
b = 66.155 | β = 112.98 |
c = 98.006 | γ = 90 |
Symmetry | |
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Space Group | C 1 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 | 100 | CCD | ADSC QUANTUM 315 | 2015-06-19 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | APS BEAMLINE 19-ID | 0.979 | APS | 19-ID |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | 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 | 2.65 | 50 | 99.8 | 0.073 | 0.078 | 0.033 | 9.3 | 6.3 | 19876 | 78.16 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | Rpim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||
1 | 2.65 | 2.7 | 98.1 | 0.696 | 0.459 | 4.6 | 931 |
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 | 4NMM | 2.702 | 43.741 | 1.34 | 18673 | 923 | 99.59 | 0.2695 | 0.2673 | 0.3144 | 105.8117 |
Temperature Factor Modeling | ||||||
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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 | 14.008 |
f_angle_d | 0.478 |
f_chiral_restr | 0.039 |
f_plane_restr | 0.003 |
f_bond_d | 0.002 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 3837 |
Nucleic Acid Atoms | |
Solvent Atoms | 30 |
Heterogen Atoms | 102 |
Software
Software | |
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Software Name | Purpose |
PHENIX | refinement |
HKL-2000 | data collection |
HKL-2000 | data scaling |
PDB_EXTRACT | data extraction |
HKL-2000 | data reduction |
PHENIX | phasing |