8sj8

Structure of binary complex of human cGAS and bound ppp(2'-5')GpG

Method: X-RAY DIFFRACTION Dmax: 66.8 Å Quality: EXCELLENT

1. Protein Identity and Related Structures Protein Identity & Related Structures

Cyclic GMP-AMP synthase

Homo sapiens

UniProt Q8N884

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 157–522 Fragment:catalytic domain (UNP residues 157-522) ZN ZINC ION × 1 OKR [[(2~{R},3~{R},4~{R},5~{R})-5-(2-azanyl-6-oxidanylidene-1~{H}-purin-9-yl)-4-[[(2~{R},3~{S},4~{R},5~{R})-5-(2-azanyl-6-oxidanylidene-1~{H}-purin-9-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methoxy-oxidanyl-phosphoryl]oxy-3-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 8.5;298.15 K;5mM magnesium chloride, 0.1M Tris-HCl pH8.5, and 8% (w/v) PEG8000 Resolution 2.50 Å R-free 0.271

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

106 other PDB entries and 132 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name CGAS_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 4–369; UniProt 157–522

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

SAXS scattering curve SAXS Profile

SAXS profile for 8sj8

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 8sj8
Download Download

2. Structure Basics 2. Structure Basics

Entry ID entry_id8sj8
Deposition date deposition_date2023-04-17
Structure title titleStructure of binary complex of human cGAS and bound ppp(2'-5')GpG
Keywords keywordsIMMUNE SYSTEM, Transferase, ligands, intermediate; TRANSFERASE
Experimental Method methodX-RAY DIFFRACTION

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier21.74
Radius of gyration Rg (electron density) rg_electron20.64
Forward intensity I(0) i025717100.00
Molecular weight molecular_weight39106.0 kDa
Excluded volume excluded_volume49164 ų
Envelope volume envelope_volume58413 ų
Hydration-shell volume shell_volume23266 ų
Envelope diameter envelope_diameter69.3
Shell Rg shell_rg27.41
Envelope Rg envelope_rg20.75
Shape Rg shape_rg20.61
Total Rg total_rg21.61
Total atoms total_atoms2741
Residues n_residues326
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 −1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax66.8
Rg (real space) rg_real21.60
Rg uncertainty (real space) rg_real_error0.36
I(0) (real space) i0_real2.5720e+07
I(0) uncertainty (real space) i0_real_error3.1120e+05
Rg (reciprocal space) rg_reciprocal21.62
I(0) (reciprocal space) i0_reciprocal25720000.0000
Solution quality estimate total_estimate0.9046
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary26.9
Skewness Skewness skewness0.145
Kurtosis Kurtosis kurtosis-0.478
Angular range angular_range— – 0.3650 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha4800000.0000
Real-space data points n_real_points68
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.936; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.995; Smooth: 0.952

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

8. Citations (1)

9. Files and Curves (10)