8IK3

Structure of Stimulator of interferon genes/ligand complex

• PDB DOI: https://doi.org/10.2210/pdb8IK3/pdb
• EM Map EMD-35504: EMDB EMDataResource

• Classification: IMMUNE SYSTEM
• Organism(s): Homo sapiens
• Expression System: Homo sapiens
• Mutation(s): No 
• Membrane Protein: Yes  OPMPDBTMMemProtMD


• Deposited: 2023-02-28 Released: 2023-05-17 
• Deposition Author(s): Lu, D.F., Shang, G.J.
• Funding Organization(s): Ministry of Science and Technology (MoST, China)

---

Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.30 Å
• Aggregation State: FILAMENT 
• Reconstruction Method: SINGLE PARTICLE 

Literature

The mechanism of STING autoinhibition and activation

Liu, S., Yang, B., Hou, Y., Cui, K., Yang, X., Li, X., Chen, L., Liu, S., Zhang, Z., Jia, Y., Xie, Y., Xue, Y., Li, X., Yan, B., Wu, C., Deng, W., Qi, J., Lu, D., Gao, G.F., Wang, P., Shang, G.

(2023) Mol Cell 83: 1502

• DOI: https://doi.org/10.1016/j.molcel.2023.03.029

Biological Assembly 1  

Global Symmetry: Helical - H  (Explore in 3D)
Global Stoichiometry: Homo 8-mer - A8 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 467.92 kDa 
• Atom Count: 20,938 
• Modelled Residue Count: 2,611 
• Deposited Residue Count: 4,168 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Stimulator of interferon genes protein,Immune protein Tsi3	A, B, C, D, E, F [auth G], G [auth F], H	521	Homo sapiens	Mutation(s): 0  Gene Names: STING1, ERIS, MITA, STING, TMEM173, tsi3, PA3485 Membrane Entity: Yes
UniProt & NIH Common Fund Data Resources
Find proteins for Q9HYC4 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1)) Explore Q9HYC4  Go to UniProtKB:  Q9HYC4
Find proteins for Q86WV6 (Homo sapiens) Explore Q86WV6  Go to UniProtKB:  Q86WV6
PHAROS:  Q86WV6 GTEx:  ENSG00000184584
UniProt Groups	Q9HYC4Q86WV6

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
1SY (Subject of Investigation/LOI)	I [auth B], J [auth D], K [auth G], L [auth F]	cGAMP C20 H24 N10 O13 P2 XRILCFTWUCUKJR-INFSMZHSSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.30 Å
• Aggregation State: FILAMENT 
• Reconstruction Method: SINGLE PARTICLE 

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-05-17 
Deposition Author(s): Lu, D.F., Shang, G.J.

---

Funding Organization	Location	Grant Number
Ministry of Science and Technology (MoST, China)	China	2021YFC2301400

Revision History  

• Version 1.0: 2023-05-17
  Type: Initial release