Annotations: 6NT8

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	TMEM173	e6nt8A1	A: a/b three-layered sandwiches	X: STING C-terminal domain (From Topology)	H: STING C-terminal domain (From Topology)	T: STING C-terminal domain	F: TMEM173	ECOD (1.6)
B	TMEM173	e6nt8B1	A: a/b three-layered sandwiches	X: STING C-terminal domain (From Topology)	H: STING C-terminal domain (From Topology)	T: STING C-terminal domain	F: TMEM173	ECOD (1.6)
C [auth D]	TMEM173	e6nt8D1	A: a/b three-layered sandwiches	X: STING C-terminal domain (From Topology)	H: STING C-terminal domain (From Topology)	T: STING C-terminal domain	F: TMEM173	ECOD (1.6)
D [auth E]	TMEM173	e6nt8E1	A: a/b three-layered sandwiches	X: STING C-terminal domain (From Topology)	H: STING C-terminal domain (From Topology)	T: STING C-terminal domain	F: TMEM173	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C [auth D], D [auth E]	PF15009	Transmembrane protein 173 (TMEM173)	Transmembrane protein 173	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C [auth D], D [auth E]	Stimulator of interferon genes protein	guanyl nucleotide binding binding cyclic nucleotide binding nucleotide binding guanyl ribonucleotide binding purine ribonucleotide binding nucleoside phosphate binding ion binding cyclic-di-GMP binding purine nucleotide binding organic cyclic compound binding anion binding heterocyclic compound binding carbohydrate derivative binding guanyl nucleotide binding binding cyclic nucleotide binding nucleotide binding guanyl ribonucleotide binding purine ribonucleotide binding nucleoside phosphate binding ion binding cyclic-di-GMP binding purine nucleotide binding organic cyclic compound binding anion binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding monoatomic cation transmembrane transporter activity proton transmembrane transporter activity monoatomic ion channel activity proton channel activity monoatomic cation channel activity passive transmembrane transporter activity inorganic molecular entity transmembrane transporter activity inorganic cation transmembrane transporter activity channel activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity cyclic GMP-AMP binding adenyl ribonucleotide binding adenyl nucleotide binding 2',3'-cyclic GMP-AMP binding identical protein binding protein binding protein homodimerization activity protein dimerization activity	cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein complex oligomerization protein-containing complex assembly cellular process cellular component organization or biogenesis regulation of defense response positive regulation of response to biotic stimulus regulation of response to biotic stimulus biological process involved in interspecies interaction between organisms response to stimulus regulation of response to external stimulus cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein complex oligomerization protein-containing complex assembly cellular process cellular component organization or biogenesis regulation of defense response positive regulation of response to biotic stimulus regulation of response to biotic stimulus biological process involved in interspecies interaction between organisms response to stimulus regulation of response to external stimulus positive regulation of biological process response to biotic stimulus positive regulation of response to stimulus positive regulation of response to external stimulus positive regulation of immune response regulation of response to stress response to stress innate immune response regulation of immune system process response to external biotic stimulus positive regulation of immune system process regulation of biological process positive regulation of innate immune response defense response immune response response to other organism regulation of innate immune response biological regulation defense response to symbiont response to external stimulus regulation of response to stimulus immune system process defense response to other organism positive regulation of defense response activation of innate immune response regulation of immune response activation of immune response autophagosome assembly catabolic process organelle assembly vacuole organization macroautophagy autophagy autophagosome organization organelle organization metabolic process process utilizing autophagic mechanism multicellular organismal process regulation of cellular process positive regulation of macromolecule biosynthetic process positive regulation of metabolic process positive regulation of biosynthetic process cytokine production regulation of cytokine production regulation of multicellular organismal process positive regulation of macromolecule metabolic process regulation of interferon-beta production interferon-beta production positive regulation of cellular process regulation of biosynthetic process positive regulation of type I interferon production type I interferon production regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process regulation of gene expression biosynthetic process positive regulation of gene expression positive regulation of multicellular organismal process regulation of macromolecule biosynthetic process macromolecule metabolic process positive regulation of interferon-beta production positive regulation of cytokine production regulation of metabolic process regulation of type I interferon production cellular response to stimulus pattern recognition receptor signaling pathway cGAS/STING signaling pathway intracellular signal transduction cell communication immune response-activating signaling pathway signal transduction innate immune response-activating signaling pathway cytoplasmic pattern recognition receptor signaling pathway intracellular receptor signaling pathway signaling immune response-regulating signaling pathway positive regulation of autophagy regulation of catabolic process regulation of autophagy positive regulation of catabolic process regulation of macroautophagy positive regulation of macroautophagy defense response to virus response to virus reticulophagy	cellular anatomical structure intracellular anatomical structure cytoplasm membrane-bounded organelle organelle subcompartment membrane intracellular membrane-bounded organelle endomembrane system endoplasmic reticulum subcompartment intracellular organelle organelle nuclear outer membrane-endoplasmic reticulum membrane network endoplasmic reticulum organelle membrane cellular anatomical structure intracellular anatomical structure cytoplasm membrane-bounded organelle organelle subcompartment membrane intracellular membrane-bounded organelle endomembrane system endoplasmic reticulum subcompartment intracellular organelle organelle nuclear outer membrane-endoplasmic reticulum membrane network endoplasmic reticulum organelle membrane endoplasmic reticulum membrane cytoplasmic vesicle intracellular vesicle vesicle vacuole autophagosome vacuolar membrane autophagosome membrane bounding membrane of organelle Golgi membrane Golgi apparatus endoplasmic reticulum-Golgi intermediate compartment membrane endoplasmic reticulum-Golgi intermediate compartment perinuclear region of cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C [auth D], D [auth E]	IPR029158	Stimulator of interferon genes protein	Family
A, B, C [auth D], D [auth E]	IPR047191	Stimulator of interferon genes protein, C-terminal	Domain
A, B, C [auth D], D [auth E]	IPR038623	Stimulator of interferon genes protein, C-terminal domain superfamily	Homologous Superfamily

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, B, C [auth D], D [auth E]	OPM				Stimulator of interferon genes (STING)

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A, B, C [auth D], D [auth E]	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

Chains	External Link	Comment
A, B, C [auth D], D [auth E]	MemProtMD	Annotated as membrane protein by MemProtMD

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, B, C [auth D], D [auth E]	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Host-Defense Proteins	STING (aka TMEM173, MITA, ERIS, or MPHYS) apo state

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.