Annotations: 4KM5

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	PAP/OAS1 substrate-binding domain-like	8055833	3000941	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Nucleotidyltransferase-like	8055835	3000129	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Mab-21_C	e4km5A6	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	e4km5A5	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)
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	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	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	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 cytoplasmic pattern recognition receptor signaling pathway 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 cellular process pattern recognition receptor signaling pathway response to stimulus regulation of response to external stimulus intracellular receptor signaling pathway signaling positive regulation of biological process response to biotic stimulus intracellular signal transduction cellular response to stimulus cytoplasmic pattern recognition receptor signaling pathway 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 cellular process pattern recognition receptor signaling pathway response to stimulus regulation of response to external stimulus intracellular receptor signaling pathway signaling positive regulation of biological process response to biotic stimulus intracellular signal transduction cell communication positive regulation of response to stimulus immune response-activating signaling pathway positive regulation of response to external stimulus immune response-regulating signaling pathway 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 signal transduction positive regulation of immune system process innate immune response-activating signaling pathway 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 cellular process activation of immune response cellular response to stress DNA damage response regulation of DNA recombination 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 cGMP-mediated signaling intracellular signaling cassette 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 cGAS/STING signaling pathway multicellular organismal process determination of adult lifespan regulation of biosynthetic process production of molecular mediator of immune response regulation of immune effector process immunoglobulin production gene expression macromolecule biosynthetic process immune effector process regulation of gene expression regulation of immunoglobulin production biosynthetic process regulation of macromolecule biosynthetic process 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 multicellular organismal process 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 cytokine production regulation of cytokine production positive regulation of macromolecule metabolic process positive regulation of type I interferon production type I interferon production positive regulation of gene expression positive regulation of multicellular organismal process positive regulation of cytokine production regulation of type I interferon production	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol cell periphery plasma membrane membrane membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle nucleoplasm cellular anatomical structure intracellular anatomical structure cytoplasm cytosol cell periphery plasma membrane membrane membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen site of double-strand break membraneless organelle site of DNA damage intracellular membraneless organelle chromosome nuclear body

InterPro: Protein Family Classification InterPro Database Homepage

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

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: Q8N884	acute myeloid leukemia chronic obstructive pulmonary disease lung carcinoma Aicardi-Goutieres syndrome glioblastoma psoriasis breast cancer head and neck cancer ulcerative colitis

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.