7UXW

Structure of ATP and GTP bind to Cyclic GMP AMP synthase (cGAS) through Mg coordination

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	277.15	0.2 M ammonium acetate, 32% MPD, with 0.1 M Bis-Tris pH 6.5

Crystal Properties
Matthews coefficient	Solvent content
2.58	52.33

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 78.929	α = 90
b = 98.66	β = 90
c = 142.25	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
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 16M		2021-10-19	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS-II BEAMLINE 17-ID-2	0.9793	NSLS-II	17-ID-2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	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	2.56	29.69	99.5	0.089	0.097	0.037	0.999	12.1	6.7		36277

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.56	2.67	96.3		0.736	0.799	0.306	0.833		6.6

Refinement

Statistics
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	4LEZ	2.57	29.01	34114	1738	99.52	0.1997	0.1972	0.248	RANDOM	68.912

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]
0.83			-0.07		-0.76

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.423
r_dihedral_angle_3_deg	15.103
r_dihedral_angle_4_deg	11.816
r_dihedral_angle_1_deg	6.22
r_angle_refined_deg	1.297
r_angle_other_deg	1.109
r_chiral_restr	0.072
r_bond_refined_d	0.011
r_gen_planes_refined	0.006
r_bond_other_d	0.001
r_gen_planes_other	0.001
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5712
Nucleic Acid Atoms	1464
Solvent Atoms	39
Heterogen Atoms	130

Software

Software
Software Name	Purpose
XDS	data reduction
Aimless	data scaling
MOLREP	phasing
Coot	model building
REFMAC	refinement
PDB_EXTRACT	data extraction