7fth

Crystal Structure of human cyclic GMP-AMP synthase in complex with cGAMP

Method: X-RAY DIFFRACTION Dmax: 70.9 Å Quality: GOOD

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 161–522 Not recorded 1SY cGAMP × 1 ZN ZINC ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 7;293 K;10-12 mg/mL protein in 25 mM Tris/HCl pH7.5, 500mM NaCl, 2mM TCEP, supplemented with 10x molar excess of ligand and, if needed, with 10 mM MgCl2 and 5mM ATP, then mixed 1:1 with reservoir of the Procomplex screen. Several conditions resulted in crystals. Resolution 2.55 Å R-free 0.256

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 1–362; UniProt 161–522

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 7fth

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 7fth
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2. Structure Basics 2. Structure Basics

Entry ID entry_id7fth
Deposition date deposition_date2023-02-08
Structure title titleCrystal Structure of human cyclic GMP-AMP synthase in complex with cGAMP
Keywords keywordsIMMUNE RESPONSE, TRANSFERASE, NTASE, DNA SENSOR; TRANSFERASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier22.30
Radius of gyration Rg (electron density) rg_electron21.05
Forward intensity I(0) i030814700.00
Molecular weight molecular_weight42639.0 kDa
Excluded volume excluded_volume53510 ų
Envelope volume envelope_volume64683 ų
Hydration-shell volume shell_volume25093 ų
Envelope diameter envelope_diameter72.9
Shell Rg shell_rg28.29
Envelope Rg envelope_rg21.28
Shape Rg shape_rg21.02
Total Rg total_rg22.08
Total atoms total_atoms2994
Residues n_residues358
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 dmax70.9
Rg (real space) rg_real22.19
Rg uncertainty (real space) rg_real_error0.31
I(0) (real space) i0_real3.0810e+07
I(0) uncertainty (real space) i0_real_error4.1270e+05
Rg (reciprocal space) rg_reciprocal22.22
I(0) (reciprocal space) i0_reciprocal30820000.0000
Solution quality estimate total_estimate0.8957
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary27.9
Skewness Skewness skewness0.176
Kurtosis Kurtosis kurtosis-0.428
Angular range angular_range— – 0.3550 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha6427000.0000
Real-space data points n_real_points67
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.889; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.990; Smooth: 0.982

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

8. Citations (1)

9. Files and Curves (10)