Annotations: 4O6A

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
D [auth B]	SCOP2B Superfamily	PAP/OAS1 substrate-binding domain-like	8055847	3000941	SCOP2B (2022-06-29)
D [auth B]	SCOP2B Superfamily	Nucleotidyltransferase-like	8055843	3000129	SCOP2B (2022-06-29)
A	SCOP2 Family	cGAS-like	8051293	4007291	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Nucleotidyltransferase-like	8055843	3000129	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	PAP/OAS1 substrate-binding domain-like	8055847	3000941	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
D [auth B]	Mab-21_C	e4o6aB2	A: alpha arrays	X: HhH/H2TH	H: SAM/DNA-glycosylase	T: PAP/OAS1 substrate-binding domain	F: Mab-21_C	ECOD (1.6)
D [auth B]	Mab-21_N	e4o6aB1	A: a+b three layers	X: Nucleotidyltransferase-like	H: Nucleotidyltransferase (From Topology)	T: Nucleotidyltransferase	F: Mab-21_N	ECOD (1.6)
A	Mab-21_C	e4o6aA1	A: alpha arrays	X: HhH/H2TH	H: SAM/DNA-glycosylase	T: PAP/OAS1 substrate-binding domain	F: Mab-21_C	ECOD (1.6)
A	Mab-21_N	e4o6aA2	A: a+b three layers	X: Nucleotidyltransferase-like	H: Nucleotidyltransferase (From Topology)	T: Nucleotidyltransferase	F: Mab-21_N	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
D [auth B]	1.10.1410.40	Mainly Alpha	Orthogonal Bundle	Poly(a)-polymerase, middle domain		CATH (4.3.0)
D [auth B]	3.30.460.90	Alpha Beta	2-Layer Sandwich	Beta Polymerase	domain 2	CATH (4.3.0)
A	1.10.1410.40	Mainly Alpha	Orthogonal Bundle	Poly(a)-polymerase, middle domain		CATH (4.3.0)
A	3.30.460.90	Alpha Beta	2-Layer Sandwich	Beta Polymerase	domain 2	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, D [auth B]	PF03281	Mab-21 protein nucleotidyltransferase domain (Mab-21)	Mab-21 protein nucleotidyltransferase domain	This family contains Mab-21 and Mab-21 like proteins. In C. elegans these proteins are required for several aspects of embryonic development [2-3].	Domain
A, D [auth B]	PF20266	Mab-21 protein HhH/H2TH-like domain (Mab-21_C)	Mab-21 protein HhH/H2TH-like domain	This family contains Mab-21 and Mab-21 like proteins. In C. elegans these proteins are required for several aspects of embryonic development [2-3].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, D [auth B]	Cyclic GMP-AMP synthase	chromatin binding binding molecular condensate scaffold activity protein-macromolecule adaptor activity molecular adaptor activity guanyl nucleotide binding GTP binding nucleotide binding guanyl ribonucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding organic cyclic compound binding chromatin binding binding molecular condensate scaffold activity protein-macromolecule adaptor activity molecular adaptor activity guanyl nucleotide binding GTP binding nucleotide binding guanyl ribonucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding organic cyclic compound binding purine nucleotide binding anion binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding phosphatidylinositol-4,5-bisphosphate binding phosphatidylinositol bisphosphate binding phospholipid binding lipid binding phosphatidylinositol phosphate binding phosphatidylinositol binding adenyl ribonucleotide binding adenyl nucleotide binding ATP binding DNA binding nucleic acid binding double-stranded DNA binding identical protein binding protein binding protein homodimerization activity protein dimerization activity ADP-D-ribose modification-dependent protein binding poly-ADP-D-ribose modification-dependent protein binding modification-dependent protein binding cyclic GMP-AMP synthase activity transferase activity 2',3'-cyclic GMP-AMP synthase activity nucleotidyltransferase activity catalytic activity transferase activity, transferring phosphorus-containing groups cation binding metal ion binding protein-containing complex binding nucleosome binding	cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process 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 regulation of response to external stimulus positive regulation of biological process response to biotic stimulus positive regulation of response to stimulus cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process 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 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 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 regulation of DNA recombination regulation of cellular process regulation of double-strand break repair regulation of cellular response to stress negative regulation of biological process regulation of primary metabolic process negative regulation of DNA repair nucleobase-containing compound metabolic process negative regulation of double-strand break repair negative regulation of cellular process negative regulation of nucleobase-containing compound metabolic process recombinational repair regulation of nucleobase-containing compound metabolic process negative regulation of double-strand break repair via homologous recombination double-strand break repair via homologous recombination DNA repair negative regulation of macromolecule metabolic process double-strand break repair negative regulation of response to stimulus negative regulation of metabolic process DNA recombination primary metabolic process DNA metabolic process regulation of macromolecule metabolic process nucleic acid metabolic process regulation of DNA repair regulation of double-strand break repair via homologous recombination negative regulation of DNA recombination metabolic process negative regulation of DNA metabolic process macromolecule metabolic process regulation of metabolic process regulation of DNA metabolic process regulation of biosynthetic process multicellular organismal process type I interferon production gene expression macromolecule biosynthetic process regulation of gene expression biosynthetic process cytokine production regulation of cytokine production regulation of macromolecule biosynthetic process regulation of multicellular organismal process regulation of type I interferon production signaling cGMP-mediated signaling intracellular signal transduction cell communication intracellular signaling cassette signal transduction cellular response to nitrogen compound cellular response to dsRNA cellular response to exogenous dsRNA cellular response to organic cyclic compound response to dsRNA response to nitrogen compound response to exogenous dsRNA cellular response to chemical stimulus response to chemical response to organic cyclic compound cell-cell signaling paracrine signaling pattern recognition receptor signaling pathway cGAS/STING signaling pathway immune response-activating signaling pathway innate immune response-activating signaling pathway cytoplasmic pattern recognition receptor signaling pathway intracellular receptor signaling pathway immune response-regulating signaling pathway determination of adult lifespan production of molecular mediator of immune response regulation of immune effector process immunoglobulin production immune effector process regulation of immunoglobulin production regulation of production of molecular mediator of immune response regulation of leukocyte activation cell activation regulation of cell activation regulation of T cell activation lymphocyte activation leukocyte activation T cell activation regulation of lymphocyte activation regulation of cellular senescence cellular senescence positive regulation of metabolic process positive regulation of cellular senescence positive regulation of cellular process regulation of defense response to virus defense response to virus positive regulation of defense response to virus by host regulation of defense response to virus by host response to virus cAMP-mediated signaling regulation of signal transduction negative regulation of cGAS/STING signaling pathway regulation of pattern recognition receptor signaling pathway negative regulation of signaling negative regulation of cytoplasmic pattern recognition receptor signaling pathway negative regulation of intracellular signal transduction regulation of cytoplasmic pattern recognition receptor signaling pathway negative regulation of cell communication regulation of intracellular signal transduction regulation of signaling negative regulation of signal transduction negative regulation of immune system process regulation of cell communication positive regulation of macromolecule biosynthetic process positive regulation of biosynthetic process positive regulation of macromolecule metabolic process positive regulation of type I interferon production positive regulation of gene expression positive regulation of multicellular organismal process positive regulation of cytokine production	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol cell periphery plasma membrane membrane intracellular organelle site of double-strand break organelle membraneless organelle site of DNA damage intracellular membraneless organelle chromosome cellular anatomical structure intracellular anatomical structure cytoplasm cytosol cell periphery plasma membrane membrane intracellular organelle site of double-strand break organelle membraneless organelle site of DNA damage intracellular membraneless organelle chromosome membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen nuclear body nucleoplasm organelle lumen nuclear lumen
B [auth D], E [auth C]	DNA1	-	-	-
C [auth E], F	DNA2	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, D [auth B]	IPR024810	MAB21L/Cyclic GMP-AMP synthase-like receptor	Family
A, D [auth B]	IPR046906	Mab-21-like, HhH/H2TH-like domain	Domain
A, D [auth B]	IPR046903	Mab-21-like, nucleotidyltransferase domain	Domain

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.