Experiment: 30LM

X-RAY DIFFRACTION

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	7UTT

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		293.15	Solution of 50 mM Calcium acetate, 100 mM Imidazole pH 8.0, 30-35% (v/v) 2-Ethoxyethanol ; added to 250 uM cGAS protein, 300 uM DNA, 2 mM Ap4A, in 20 mM Tris-HCL pH 7.5, 0.5 mM TCEP, 150 mM NaCl, 5 mM MgCl2 in a 1 to 1 or 1 to 2 ratio.

Crystal Properties
Matthews coefficient	Solvent content
2.57	52.16

Symmetry
Space Group	P 21 21 21

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	90	PIXEL	DECTRIS EIGER2 X 9M		2025-09-30	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID23-2	0.873128	ESRF	ID23-2

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	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	2.7	46.75	99.9	0.998	11.37	13.43		31264			75.42

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.7	2.86			0.528	1.44

Statistics
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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	2.7	40.68	1.35	31249	1563	99.92	0.2306	0.2289	0.2287	0.2633	0.2632	90.73

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]

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	21.3132
f_angle_d	0.7528
f_chiral_restr	0.0457
f_plane_restr	0.0055
f_bond_d	0.0047

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5717
Nucleic Acid Atoms	1464
Solvent Atoms
Heterogen Atoms	68

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.

30LM | pdb_000030lm