8GT6

human STING With agonist HB3089


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.47 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Structural insights into a shared mechanism of human STING activation by a potent agonist and an autoimmune disease-associated mutation.

Xie, Z.Wang, Z.Fan, F.Zhou, J.Hu, Z.Wang, Q.Wang, X.Zeng, Q.Zhang, Y.Qiu, J.Zhou, X.Xu, H.Bai, H.Zhan, Z.Ding, J.Zhang, H.Duan, W.Yu, X.Geng, M.

(2022) Cell Discov 8: 133-133

  • DOI: https://doi.org/10.1038/s41421-022-00481-4
  • Primary Citation of Related Structures:  
    8GSZ, 8GT6

  • PubMed Abstract: 

    Stimulator of interferon gene (STING) is increasingly exploited for the potential in cancer immunotherapy, yet its mechanism of activation remains not fully understood. Herein, we designed a novel STING agonist, designated as HB3089 that exhibits robust and durable anti-tumor activity in tumor models across various cancer types. Cryo-EM analysis reveals that HB3089-bound human STING has structural changes similar to that of the STING mutant V147L, a constitutively activated mutant identified in patients with STING-associated vasculopathy with onset in infancy (SAVI). Both structures highlight the conformational changes of the transmembrane domain (TMD), but without the 180°-rotation of the ligand binding domain (LBD) previously shown to be required for STING activation. Further structure-based functional analysis confirmed a new STING activation mode shared by the agonist and the SAVI-related mutation, in which the connector linking the LBD and the TMD senses the activation signal and controls the conformational changes of the LBD and the TMD for STING activation. Together, our findings lead to a new working model for STING activation and open a new avenue for the rationale design of STING-targeted therapies either for cancer or autoimmune disorders.


  • Organizational Affiliation

    State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Stimulator of interferon genes protein
A, B
379Homo sapiensMutation(s): 0 
Gene Names: STING1ERISMITASTINGTMEM173
Membrane Entity: Yes 
UniProt & NIH Common Fund Data Resources
Find proteins for Q86WV6 (Homo sapiens)
Explore Q86WV6 
Go to UniProtKB:  Q86WV6
PHAROS:  Q86WV6
GTEx:  ENSG00000184584 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ86WV6
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
WJ6 (Subject of Investigation/LOI)
Query on WJ6

Download Ideal Coordinates CCD File 
C [auth A]1-[(2E)-4-{5-carbamoyl-2-[(1-ethyl-3-methyl-1H-pyrazole-5-carbonyl)amino]-7-[3-(morpholin-4-yl)propoxy]-1H-benzimidazol-1-yl}but-2-en-1-yl]-2-[(1-ethyl-3-methyl-1H-pyrazole-5-carbonyl)amino]-7-methyl-1H-furo[3,2-e]benzimidazole-5-carboxamide
C44 H51 N13 O7
FFHNIZGXZIQOQX-CMDGGOBGSA-N
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.47 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Other governmentChinaTZX022021007
Other governmentChinaLG202103-02-08
National Natural Science Foundation of China (NSFC)China81821005
Other governmentChina2020CXJQ02
National Natural Science Foundation of China (NSFC)China32000896
Other governmentChina2020M681427

Revision History  (Full details and data files)

  • Version 1.0: 2022-12-28
    Type: Initial release
  • Version 1.1: 2024-06-19
    Changes: Data collection