8G2P

Structure of Ternary Complex of cGAS with dsDNA and Bound ATP and GTP

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	4LEZ

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
2.56	52

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 78.219	α = 90
b = 99.102	β = 90
c = 141.944	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		2022-03-30	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS-II BEAMLINE 17-ID-2	0.979	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	2.52	29.78	99.5	0.071	0.083	0.044	0.999	14.7	6.7		37823

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	2.52	2.62			0.696	0.82	0.429	0.785		6.7

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	2.521	29.773	37765	1898	99.473	0.192	0.1899	0.2419	66.529

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]
0.157			0.639		-0.796

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_3_deg	16.865
r_dihedral_angle_6_deg	16.179
r_lrange_it	7.41
r_lrange_other	7.41
r_dihedral_angle_2_deg	7.346
r_dihedral_angle_1_deg	6.851
r_paralell_plane_angle_deg	5.656
r_scangle_it	5.185
r_scangle_other	5.184
r_mcangle_it	4.582
r_mcangle_other	4.582
r_scbond_it	3.489
r_scbond_other	3.488
r_mcbond_it	2.93
r_mcbond_other	2.928
r_angle_refined_deg	1.868
r_angle_other_deg	0.491
r_metal_ion_refined	0.43
r_dihedral_angle_other_2_deg	0.375
r_symmetry_nbd_refined	0.235
r_nbd_refined	0.231
r_symmetry_xyhbond_nbd_refined	0.211
r_symmetry_nbd_other	0.206
r_xyhbond_nbd_refined	0.201
r_nbd_other	0.199
r_nbtor_refined	0.197
r_ncsr_local_group_3	0.15
r_ncsr_local_group_5	0.136
r_ncsr_local_group_1	0.125
r_ncsr_local_group_7	0.124
r_ncsr_local_group_4	0.121
r_ncsr_local_group_2	0.115
r_ncsr_local_group_6	0.106
r_symmetry_nbtor_other	0.083
r_chiral_restr	0.075
r_symmetry_xyhbond_nbd_other	0.075
r_bond_refined_d	0.012
r_xyhbond_nbd_other	0.009
r_gen_planes_refined	0.008
r_bond_other_d	0.002
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5738
Nucleic Acid Atoms	1464
Solvent Atoms	115
Heterogen Atoms	130

Software

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