6CY7

Human Stimulator of Interferon Genes


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.258 
  • R-Value Work: 0.202 
  • R-Value Observed: 0.205 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

STING Polymer Structure Reveals Mechanisms for Activation, Hyperactivation, and Inhibition.

Ergun, S.L.Fernandez, D.Weiss, T.M.Li, L.

(2019) Cell 178: 290-301.e10

  • DOI: 10.1016/j.cell.2019.05.036
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • How the central innate immune protein, STING, is activated by its ligands remains unknown. Here, using structural biology and biochemistry, we report that the metazoan second messenger 2'3'-cGAMP induces closing of the human STING homodimer and relea ...

    How the central innate immune protein, STING, is activated by its ligands remains unknown. Here, using structural biology and biochemistry, we report that the metazoan second messenger 2'3'-cGAMP induces closing of the human STING homodimer and release of the STING C-terminal tail, which exposes a polymerization interface on the STING dimer and leads to the formation of disulfide-linked polymers via cysteine residue 148. Disease-causing hyperactive STING mutations either flank C148 and depend on disulfide formation or reside in the C-terminal tail binding site and cause constitutive C-terminal tail release and polymerization. Finally, bacterial cyclic-di-GMP induces an alternative active STING conformation, activates STING in a cooperative manner, and acts as a partial antagonist of 2'3'-cGAMP signaling. Our insights explain the tight control of STING signaling given varying background activation signals and provide a therapeutic hypothesis for autoimmune syndrome treatment.


    Related Citations: 
    • STING polymer structure reveals mechanisms for activation, hyperactivation, and inhibition
      Ergun, S.L., Fernandez, D., Weiss, T.M., Li, L.
      (2019) Biorxiv --: --

    Organizational Affiliation

    Department of Biochemistry, Stanford School of Medicine, Stanford University, Stanford, CA 94305, USA; Stanford ChEM-H, Stanford University, Stanford, CA 94305, USA. Electronic address: lingyinl@stanford.edu.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Stimulator of interferon genes protein
A
241Homo sapiensMutation(s): 0 
Gene Names: TMEM173ERISMITASTINGSTING1
Find proteins for Q86WV6 (Homo sapiens)
Go to UniProtKB:  Q86WV6
NIH Common Fund Data Resources
PHAROS  Q86WV6
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
2BA
Query on 2BA

Download CCD File 
A
(2R,3R,3aS,5R,7aR,9R,10R,10aS,12R,14aR)-2,9-bis(6-amino-9H-purin-9-yl)octahydro-2H,7H-difuro[3,2-d:3',2'-j][1,3,7,9,2,8]tetraoxadiphosphacyclododecine-3,5,10,12-tetrol 5,12-dioxide
C20 H24 N10 O12 P2
PDXMFTWFFKBFIN-XPWFQUROSA-N
 Ligand Interaction
GOL
Query on GOL

Download CCD File 
A
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
IMD
Query on IMD

Download CCD File 
A
IMIDAZOLE
C3 H5 N2
RAXXELZNTBOGNW-UHFFFAOYSA-O
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.258 
  • R-Value Work: 0.202 
  • R-Value Observed: 0.205 
  • Space Group: P 41 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 111.457α = 90
b = 111.457β = 90
c = 35.424γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
SCALAdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2019-03-13
    Type: Initial release
  • Version 1.1: 2019-07-10
    Changes: Data collection, Database references
  • Version 1.2: 2019-07-24
    Changes: Data collection, Database references
  • Version 1.3: 2019-08-07
    Changes: Data collection, Database references