4F9E

Cyclic di-GMP Sensing via the Innate Immune Signaling Protein STING


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.75 Å
  • R-Value Free: 0.258 
  • R-Value Work: 0.212 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Cyclic di-GMP Sensing via the Innate Immune Signaling Protein STING.

Yin, Q.Tian, Y.Kabaleeswaran, V.Jiang, X.Tu, D.Eck, M.J.Chen, Z.J.Wu, H.

(2012) Mol.Cell 46: 735-745

  • DOI: 10.1016/j.molcel.2012.05.029
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Detection of foreign materials is the first step of successful immune responses. Stimulator of interferon genes (STING) was shown to directly bind cyclic diguanylate monophosphate (c-di-GMP), a bacterial second messenger, and to elicit strong interfe ...

    Detection of foreign materials is the first step of successful immune responses. Stimulator of interferon genes (STING) was shown to directly bind cyclic diguanylate monophosphate (c-di-GMP), a bacterial second messenger, and to elicit strong interferon responses. Here we elucidate the structural features of the cytosolic c-di-GMP binding domain (CBD) of STING and its complex with c-di-GMP. The CBD exhibits an α + β fold and is a dimer in the crystal and in solution. Surprisingly, one c-di-GMP molecule binds to the central crevice of a STING dimer, using a series of stacking and hydrogen bonding interactions. We show that STING is autoinhibited by an intramolecular interaction between the CBD and the C-terminal tail (CTT) and that c-di-GMP releases STING from this autoinhibition by displacing the CTT. The structures provide a remarkable example of pathogen-host interactions in which a unique microbial molecule directly engages the innate immune system.


    Organizational Affiliation

    Department of Biochemistry, Weill Cornell Medical College, New York, NY 10065, USA. qiy2001@med.cornell.edu




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Transmembrane protein 173
A
265Homo sapiensMutation(s): 0 
Gene Names: TMEM173 (ERIS, MITA, STING)
Find proteins for Q86WV6 (Homo sapiens)
Go to Gene View: TMEM173
Go to UniProtKB:  Q86WV6
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.75 Å
  • R-Value Free: 0.258 
  • R-Value Work: 0.212 
  • Space Group: P 43 21 2
Unit Cell:
Length (Å)Angle (°)
a = 61.400α = 90.00
b = 61.400β = 90.00
c = 118.310γ = 90.00
Software Package:
Software NamePurpose
PDB_EXTRACTdata extraction
PHENIXrefinement
SOLVEphasing
RESOLVEphasing
XDSdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-07-25
    Type: Initial release
  • Version 1.1: 2014-01-01
    Type: Other