8GB1
Crystal structure of SAMHD1 dimer bound to deoxyguanosine linked inhibitor
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 6DWD |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 7.3 | 293 | 17% PEG3350, 0.15 M Ammonium citrate pH 7.3, 293 K, 5 mg/mL, 1 uL protein + 2 uL ML. Soak 1 uL of 1 mM compound |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.47 | 50.12 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 81.783 | α = 90 |
b = 144.04 | β = 90 |
c = 200.318 | 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 | 100 | PIXEL | DECTRIS EIGER X 9M | 2022-11-16 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | NSLS-II BEAMLINE 17-ID-1 | 0.9201 | NSLS-II | 17-ID-1 |
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 | 2.41 | 117.3 | 96.29 | 0.19 | 0.081 | 0.99 | 6.2 | 6.5 | 83225 | 56.36 |
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 | 2.41 | 2.56 | 96.29 | 2.76 | 0.94 | 0.35 | 0.9 | 6.9 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | 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 | 2.46 | 27.17 | 1.35 | 83212 | 4357 | 96.4 | 0.1935 | 0.1923 | 0.2356 | 75.24 |
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 | 6.6719 |
f_angle_d | 0.6788 |
f_chiral_restr | 0.0439 |
f_plane_restr | 0.0089 |
f_bond_d | 0.0033 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 14705 |
Nucleic Acid Atoms | |
Solvent Atoms | 620 |
Heterogen Atoms | 172 |
Software
Software | |
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Software Name | Purpose |
PHENIX | refinement |
Coot | model building |
MOLREP | phasing |
DIMPLE | data reduction |
DIMPLE | data scaling |