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- EMDB-29281: Cryo-EM structure of STING oligomer bound to cGAMP and NVS-STG2 -
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Open data
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Basic information
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Title | Cryo-EM structure of STING oligomer bound to cGAMP and NVS-STG2 | |||||||||||||||
![]() | Map of STING tetramer bound to cGAMP and NVS-STG2 | |||||||||||||||
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![]() | STING / innate immunity / molecular glue / IMMUNE SYSTEM | |||||||||||||||
Function / homology | ![]() STING complex / STAT6-mediated induction of chemokines / serine/threonine protein kinase complex / protein localization to endoplasmic reticulum / 2',3'-cyclic GMP-AMP binding / proton channel activity / cyclic-di-GMP binding / STING mediated induction of host immune responses / IRF3-mediated induction of type I IFN / positive regulation of type I interferon-mediated signaling pathway ...STING complex / STAT6-mediated induction of chemokines / serine/threonine protein kinase complex / protein localization to endoplasmic reticulum / 2',3'-cyclic GMP-AMP binding / proton channel activity / cyclic-di-GMP binding / STING mediated induction of host immune responses / IRF3-mediated induction of type I IFN / positive regulation of type I interferon-mediated signaling pathway / cGAS/STING signaling pathway / reticulophagy / pattern recognition receptor signaling pathway / cytoplasmic pattern recognition receptor signaling pathway / cellular response to exogenous dsRNA / protein complex oligomerization / positive regulation of macroautophagy / autophagosome membrane / : / autophagosome assembly / positive regulation of type I interferon production / cellular response to interferon-beta / signaling adaptor activity / positive regulation of defense response to virus by host / antiviral innate immune response / cytoplasmic vesicle membrane / endoplasmic reticulum-Golgi intermediate compartment membrane / Regulation of innate immune responses to cytosolic DNA / activation of innate immune response / autophagosome / positive regulation of interferon-beta production / secretory granule membrane / positive regulation of DNA-binding transcription factor activity / SARS-CoV-1 activates/modulates innate immune responses / peroxisome / positive regulation of protein binding / regulation of inflammatory response / defense response to virus / RNA polymerase II-specific DNA-binding transcription factor binding / mitochondrial outer membrane / endosome / Golgi membrane / innate immune response / ubiquitin protein ligase binding / Neutrophil degranulation / endoplasmic reticulum membrane / protein kinase binding / SARS-CoV-2 activates/modulates innate and adaptive immune responses / perinuclear region of cytoplasm / protein homodimerization activity / positive regulation of transcription by RNA polymerase II / nucleoplasm / identical protein binding / plasma membrane / cytosol Similarity search - Function | |||||||||||||||
Biological species | ![]() | |||||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 4.0 Å | |||||||||||||||
![]() | Li J / Canham SM / Zhang X / Bai X / Feng Y | |||||||||||||||
Funding support | ![]()
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![]() | ![]() Title: Activation of human STING by a molecular glue-like compound. Authors: Jie Li / Stephen M Canham / Hua Wu / Martin Henault / Lihao Chen / Guoxun Liu / Yu Chen / Gary Yu / Howard R Miller / Viktor Hornak / Scott M Brittain / Gregory A Michaud / Antonin Tutter / ...Authors: Jie Li / Stephen M Canham / Hua Wu / Martin Henault / Lihao Chen / Guoxun Liu / Yu Chen / Gary Yu / Howard R Miller / Viktor Hornak / Scott M Brittain / Gregory A Michaud / Antonin Tutter / Wendy Broom / Mary Ellen Digan / Sarah M McWhirter / Kelsey E Sivick / Helen T Pham / Christine H Chen / George S Tria / Jeffery M McKenna / Markus Schirle / Xiaohong Mao / Thomas B Nicholson / Yuan Wang / Jeremy L Jenkins / Rishi K Jain / John A Tallarico / Sejal J Patel / Lianxing Zheng / Nathan T Ross / Charles Y Cho / Xuewu Zhang / Xiao-Chen Bai / Yan Feng / ![]() Abstract: Stimulator of interferon genes (STING) is a dimeric transmembrane adapter protein that plays a key role in the human innate immune response to infection and has been therapeutically exploited for its ...Stimulator of interferon genes (STING) is a dimeric transmembrane adapter protein that plays a key role in the human innate immune response to infection and has been therapeutically exploited for its antitumor activity. The activation of STING requires its high-order oligomerization, which could be induced by binding of the endogenous ligand, cGAMP, to the cytosolic ligand-binding domain. Here we report the discovery through functional screens of a class of compounds, named NVS-STGs, that activate human STING. Our cryo-EM structures show that NVS-STG2 induces the high-order oligomerization of human STING by binding to a pocket between the transmembrane domains of the neighboring STING dimers, effectively acting as a molecular glue. Our functional assays showed that NVS-STG2 could elicit potent STING-mediated immune responses in cells and antitumor activities in animal models. | |||||||||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 4.2 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 17.3 KB 17.3 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 5.8 KB | Display | ![]() |
Images | ![]() | 91.3 KB | ||
Filedesc metadata | ![]() | 6 KB | ||
Others | ![]() ![]() | 11.1 MB 11.1 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 799.7 KB | Display | ![]() |
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Full document | ![]() | 799.2 KB | Display | |
Data in XML | ![]() | 11.1 KB | Display | |
Data in CIF | ![]() | 15.2 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 8flkMC ![]() 8flmC M: atomic model generated by this map C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
File | ![]() | ||||||||||||||||||||||||||||||||||||
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Annotation | Map of STING tetramer bound to cGAMP and NVS-STG2 | ||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.08 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: half map 1
File | emd_29281_half_map_1.map | ||||||||||||
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Annotation | half map 1 | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: half map 2
File | emd_29281_half_map_2.map | ||||||||||||
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Annotation | half map 2 | ||||||||||||
Projections & Slices |
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Density Histograms |
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Sample components
-Entire : STING tetramer
Entire | Name: STING tetramer |
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Components |
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-Supramolecule #1: STING tetramer
Supramolecule | Name: STING tetramer / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1 Details: STING tetramer, which can further assemblies into larger oligomers, induced by cGAMP and NVS-STG2 |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 300 KDa |
-Macromolecule #1: Stimulator of interferon genes protein
Macromolecule | Name: Stimulator of interferon genes protein / type: protein_or_peptide / ID: 1 / Number of copies: 4 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 39.553398 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: MPHSSLHPSI PCPRGHGAQK AALVLLSACL VTLWGLGEPP EHTLRYLVLH LASLQLGLLL NGVCSLAEEL RHIHSRYRGS YWRTVRACL GCPLRRGALL LLSIYFYYSL PNAVGPPFTW MLALLGLSQA LNILLGLKGL APAEISAVCE KGNFNVAHGL A WSYYIGYL ...String: MPHSSLHPSI PCPRGHGAQK AALVLLSACL VTLWGLGEPP EHTLRYLVLH LASLQLGLLL NGVCSLAEEL RHIHSRYRGS YWRTVRACL GCPLRRGALL LLSIYFYYSL PNAVGPPFTW MLALLGLSQA LNILLGLKGL APAEISAVCE KGNFNVAHGL A WSYYIGYL RLILPELQAR IRTYNQHYNN LLRGAVSQRL YILLPLDCGV PDNLSMADPN IRFLDKLPQQ TGDRAGIKDR VY SNSIYEL LENGQRAGTC VLEYATPLQT LFAMSQYSQA GFSREDRLEQ AKLFCRTLED ILADAPESQN NCRLIAYQEP ADD SSFSLS QEVLRHLRQE EKEEVTVGTS SGLEVLFQ UniProtKB: Stimulator of interferon genes protein |
-Macromolecule #2: cGAMP
Macromolecule | Name: cGAMP / type: ligand / ID: 2 / Number of copies: 2 / Formula: 1SY |
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Molecular weight | Theoretical: 674.411 Da |
Chemical component information | ![]() ChemComp-1SY: |
-Macromolecule #3: 4-({[4-(2-tert-butyl-5,5-dimethyl-1,3-dioxan-2-yl)phenyl]methyl}a...
Macromolecule | Name: 4-({[4-(2-tert-butyl-5,5-dimethyl-1,3-dioxan-2-yl)phenyl]methyl}amino)-3-methoxybenzoic acid type: ligand / ID: 3 / Number of copies: 2 / Formula: Y6H |
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Molecular weight | Theoretical: 427.533 Da |
Chemical component information | ![]() ChemComp-Y6H: |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Buffer | pH: 7.5 |
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Vitrification | Cryogen name: NITROGEN |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 60.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.5 µm / Nominal defocus min: 1.5 µm |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
-Atomic model buiding 1
Refinement | Space: REAL / Protocol: AB INITIO MODEL |
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Output model | ![]() PDB-8flk: |