7ftl

Crystal Structure of human cyclic GMP-AMP synthase in complex with 8-chloro-2-(2-hydroxyphenyl)quinoline-4-carboxylic acid

Method: X-RAY DIFFRACTION Dmax: 69.9 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 161–522 Not recorded ZN ZINC ION × 1 YME (2P)-8-chloro-2-(2-hydroxyphenyl)quinoline-4-carboxylic acid × 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 2.20 Å R-free 0.287

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 7ftl

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id7ftl
Deposition date deposition_date2023-02-08
Structure title titleCrystal Structure of human cyclic GMP-AMP synthase in complex with 8-chloro-2-(2-hydroxyphenyl)quinoline-4-carboxylic acid
Keywords keywords;NUCLEOTIDYLTRANSFERASE, CYCLIC GMP-AMP SYNTHASE, CGAS, DNA-BINDING, ACTIVATOR DNA, PATTERN RECOGNITION RECEPTOR, INNATE IMMUNE RESPONSE, VIRAL DNA RECOGNITION, TRANSFERASE ;; TRANSFERASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier22.53
Radius of gyration Rg (electron density) rg_electron21.20
Forward intensity I(0) i028129300.00
Molecular weight molecular_weight41491.0 kDa
Excluded volume excluded_volume52412 ų
Envelope volume envelope_volume64528 ų
Hydration-shell volume shell_volume24895 ų
Envelope diameter envelope_diameter71.5
Shell Rg shell_rg28.29
Envelope Rg envelope_rg21.26
Shape Rg shape_rg21.16
Total Rg total_rg22.27
Total atoms total_atoms2915
Residues n_residues351
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 dmax69.9
Rg (real space) rg_real22.39
Rg uncertainty (real space) rg_real_error0.35
I(0) (real space) i0_real2.8130e+07
I(0) uncertainty (real space) i0_real_error3.1980e+05
Rg (reciprocal space) rg_reciprocal22.43
I(0) (reciprocal space) i0_reciprocal28130000.0000
Solution quality estimate total_estimate0.9047
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary68.8
Skewness Skewness skewness0.116
Kurtosis Kurtosis kurtosis-0.517
Angular range angular_range— – 0.3550 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha6923000.0000
Real-space data points n_real_points67
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.926; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.988; Smooth: 0.992

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

8. Citations (1)

9. Files and Curves (10)