7FTX
Crystal Structure of apo human cyclic GMP-AMP synthase - hexagonal form
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 7 | 293 | 10-12 mg/mL protein in 25 mM Tris/HCl pH7.5, 500mM NaCl, 2mM TCEP, supplemented with 10x molar excess of ligand and, if needed, with 10 mM MgCl2 and 5mM ATP, then mixed 1:1 with reservoir of the Procomplex screen. Several conditions resulted in crystals. |
Crystal Properties | |
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Matthews coefficient | Solvent content |
4.19 | 70.67 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 101.235 | α = 90 |
b = 101.235 | β = 90 |
c = 240.332 | γ = 120 |
Symmetry | |
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Space Group | P 61 2 2 |
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 | PSI PILATUS 6M | 2018-12-13 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SLS BEAMLINE X10SA | 1.00000 | SLS | X10SA |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Rrim 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 | 3.04 | 82.36 | 99.9 | 0.39 | 0.401 | 0.996 | 10.71 | 18.875 | 14825 | 64.2 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||
1 | 3.04 | 3.12 | 100 | 3.756 | 3.857 | 0.412 | 1.09 | 19.264 |
Refinement
Statistics | |||||||||||||||||||
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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 | inhouse model | 2.831 | 82.36 | 13894 | 687 | 76.6 | 0.2446 | 0.2429 | 0.278 | RANDOM | 55.41 |
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] | |
-0.3803 | -0.3803 | 0.7606 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
t_other_torsion | 20.83 |
t_omega_torsion | 2.42 |
t_angle_deg | 0.87 |
t_bond_d | 0.007 |
t_dihedral_angle_d | |
t_trig_c_planes | |
t_gen_planes | |
t_it | |
t_nbd | |
t_improper_torsion |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2928 |
Nucleic Acid Atoms | |
Solvent Atoms | |
Heterogen Atoms | 26 |
Software
Software | |
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Software Name | Purpose |
XSCALE | data scaling |
BUSTER | refinement |
PDB_EXTRACT | data extraction |
XDS | data reduction |
XSCALE | data scaling |
PHASER | phasing |