4k9a

Structure of Ternary Complex of cGAS with dsDNA and Bound 5 -pG(2 ,5 )pA

Method: X-RAY DIFFRACTION Dmax: 70.5 Å Quality: EXCELLENT

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

Cyclic GMP-AMP synthase

Mus musculus

UniProt Q8C6L5

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–DNA Monomer Protein × 1 DNA 2 PDB declaration: trimeric(3) Consistent with all polymer counts Chain A; UniProt 147–507 Fragment:C-TERMINAL DOMAIN, UNP residues 147-507 DNA-F × 1 DNA-R × 1 ZN ZINC ION × 1 PO4 PHOSPHATE ION × 1 5GP GUANOSINE-5'-MONOPHOSPHATE × 1 AMP ADENOSINE MONOPHOSPHATE × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 6;293 K;0.1 M MES, 40% MPD, pH 6.0, VAPOR DIFFUSION, SITTING DROP, temperature 293K Resolution 2.26 Å R-free 0.210

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.

55 other PDB entries and 63 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name CGAS_MOUSE
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 2–362; UniProt 147–507

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 4k9a

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 4k9a
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2. Structure Basics 2. Structure Basics

Entry ID entry_id4k9a
Deposition date deposition_date2013-04-19
Structure title titleStructure of Ternary Complex of cGAS with dsDNA and Bound 5 -pG(2 ,5 )pA
Keywords keywordsnucleotidyltransferase fold, TRANSFERASE-DNA complex; TRANSFERASE/DNA
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier23.33
Radius of gyration Rg (electron density) rg_electron22.05
Forward intensity I(0) i052765200.00
Molecular weight molecular_weight51281.0 kDa
Excluded volume excluded_volume61956 ų
Envelope volume envelope_volume76877 ų
Hydration-shell volume shell_volume28146 ų
Envelope diameter envelope_diameter72.4
Shell Rg shell_rg29.57
Envelope Rg envelope_rg22.16
Shape Rg shape_rg22.01
Total Rg total_rg22.98
Total atoms total_atoms3568
Residues n_residues383
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 dmax70.5
Rg (real space) rg_real23.17
Rg uncertainty (real space) rg_real_error0.36
I(0) (real space) i0_real5.2770e+07
I(0) uncertainty (real space) i0_real_error6.8610e+05
Rg (reciprocal space) rg_reciprocal23.21
I(0) (reciprocal space) i0_reciprocal52770000.0000
Solution quality estimate total_estimate0.9069
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary30.4
Skewness Skewness skewness0.119
Kurtosis Kurtosis kurtosis-0.461
Angular range angular_range— – 0.3400 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha7402000.0000
Real-space data points n_real_points66
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: 0.980; Smooth: 0.997

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (8)

7. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

Domain ID domain_id4k9aA01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology1410 — Poly(a)-polymerase, middle domain
Homologous superfamily homologous superfamily40
Domain ID domain_id4k9aA02
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology460 — Beta Polymerase; domain 2
Homologous superfamily homologous superfamily90

8. Citations (1)

9. Files and Curves (10)