7FTX | pdb_00007ftx

Crystal Structure of apo human cyclic GMP-AMP synthase - hexagonal form

• PDB DOI: https://doi.org/10.2210/pdb7FTX/pdb
• Deposition Group: G_1002263 | Explore  G_1002263  

• Classification: 
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2023-02-08 Released: 2024-02-21 
• Deposition Author(s): Leibrock, L., Benz, J., Groebke-Zbinden, K., Rudolph, M.G.
• Funding Organization(s): F. Hoffmann-La Roche LTD

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.83 Å
• R-Value Free: 
  0.278 (Depositor), 0.226 (DCC) 
• R-Value Work: 
  0.243 (Depositor) 
• R-Value Observed: 
  0.245 (Depositor) 

Starting Model: other

Literature

Crystal Structure of a human cyclic GMP-AMP synthase complex

Groebke-Zbinden, K., Vandemeulebroucke, A., Hilbert, M., Rudolph, M.G.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content 

• Total Structure Weight: 43.08 kDa 
• Atom Count: 2,954 
• Modeled Residue Count: 356 
• Deposited Residue Count: 363 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Cyclic GMP-AMP synthase	A	363	Homo sapiens	Mutation(s): 0  Gene Names: CGAS, C6orf150, MB21D1 EC: 2.7.7.86
UniProt & NIH Common Fund Data Resources
Find proteins for Q8N884 (Homo sapiens) Explore Q8N884  Go to UniProtKB:  Q8N884
PHAROS:  Q8N884 GTEx:  ENSG00000164430

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	C [auth A], D [auth A], E [auth A], F [auth A], G [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L
ZN	B [auth A]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.83 Å
• R-Value Free:  0.278 (Depositor), 0.226 (DCC) 
• R-Value Work:  0.243 (Depositor) 
• R-Value Observed: 0.245 (Depositor) 

Space Group: P 6₁ 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 101.235	α = 90
b = 101.235	β = 90
c = 240.332	γ = 120

Software Package:

Software Name	Purpose
XSCALE	data scaling
BUSTER	refinement
PDB_EXTRACT	data extraction
XDS	data reduction
XSCALE	data scaling
PHASER	phasing

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2024-02-21 
Deposition Author(s): Leibrock, L., Benz, J., Groebke-Zbinden, K., Rudolph, M.G.

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Funding Organization	Location	Grant Number
F. Hoffmann-La Roche LTD	Switzerland	--

Revision History  

• Version 1.0: 2024-02-21
  Type: Initial release
  
• Version 1.1: 2026-02-18
  Changes: Refinement description, Structure summary