Annotations: 3OF1

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d3of1a1	All beta proteins	Double-stranded beta-helix	cAMP-binding domain-like	automated matches	automated matches	yeast (Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	cNMP_binding_1	e3of1A2	A: beta sandwiches	X: jelly-roll	H: Double-stranded beta-helix (From Topology)	T: Double-stranded beta-helix	F: cNMP_binding_1	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.60.120.10	Mainly Beta	Sandwich	Jelly Rolls	Jelly Rolls	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00027	Cyclic nucleotide-binding domain (cNMP_binding)	Cyclic nucleotide-binding domain	This domain sensor domain can bind cAMP, cGMP, c-di-GMP, oxygen and 2-oxoglutarate (Matilla et. al., FEMS Microbiology Reviews, fuab043, 45, 2021, 1. https://doi.org/10.1093/femsre/fuab043).	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	cAMP-dependent protein kinase regulatory subunit	binding adenyl ribonucleotide binding cyclic nucleotide binding nucleotide binding purine ribonucleotide binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding cAMP binding adenyl nucleotide binding heterocyclic compound binding carbohydrate derivative binding binding adenyl ribonucleotide binding cyclic nucleotide binding nucleotide binding purine ribonucleotide binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding cAMP binding adenyl nucleotide binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding enzyme regulator activity enzyme inhibitor activity protein kinase regulator activity cAMP-dependent protein kinase regulator activity protein kinase inhibitor activity molecular function inhibitor activity molecular function regulator activity cAMP-dependent protein kinase inhibitor activity protein serine/threonine kinase inhibitor activity kinase inhibitor activity kinase regulator activity protein kinase A catalytic subunit binding protein binding protein kinase A binding kinase binding enzyme binding protein kinase binding identical protein binding	protein localization localization cellular localization cellular macromolecule localization macromolecule localization protein localization to bud neck cellular process cellular response to stimulus response to nutrient levels cellular response to nitrogen levels response to stimulus cellular response to starvation cellular response to nutrient levels cellular response to stress protein localization localization cellular localization cellular macromolecule localization macromolecule localization protein localization to bud neck cellular process cellular response to stimulus response to nutrient levels cellular response to nitrogen levels response to stimulus cellular response to starvation cellular response to nutrient levels cellular response to stress cellular response to nitrogen starvation response to stress response to starvation cellular response to glucose starvation regulation of cellular process regulation of protein modification process regulation of protein phosphorylation regulation of primary metabolic process regulation of phosphate metabolic process phosphate-containing compound metabolic process protein metabolic process protein modification process phosphorus metabolic process regulation of biological process protein phosphorylation phosphorylation regulation of protein metabolic process biological regulation primary metabolic process regulation of macromolecule metabolic process macromolecule modification metabolic process regulation of phosphorylation regulation of phosphorus metabolic process macromolecule metabolic process regulation of metabolic process small GTPase-mediated signal transduction signaling negative regulation of signaling regulation of small GTPase mediated signal transduction negative regulation of intracellular signal transduction negative regulation of biological process regulation of signal transduction intracellular signal transduction negative regulation of cell communication cell communication regulation of intracellular signal transduction regulation of Ras protein signal transduction intracellular signaling cassette negative regulation of cellular process signal transduction regulation of signaling negative regulation of response to stimulus Ras protein signal transduction negative regulation of small GTPase mediated signal transduction negative regulation of signal transduction negative regulation of Ras protein signal transduction regulation of response to stimulus regulation of cell communication positive regulation of DNA-templated transcription positive regulation of biological process RNA metabolic process positive regulation of macromolecule biosynthetic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process positive regulation of metabolic process DNA-templated transcription regulation of RNA metabolic process transcription by RNA polymerase II positive regulation of biosynthetic process positive regulation of macromolecule metabolic process regulation of nucleobase-containing compound metabolic process positive regulation of cellular process regulation of RNA biosynthetic process regulation of biosynthetic process regulation of transcription by RNA polymerase II positive regulation of nucleobase-containing compound metabolic process positive regulation of transcription by RNA polymerase II nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process positive regulation of RNA metabolic process regulation of gene expression biosynthetic process positive regulation of RNA biosynthetic process regulation of macromolecule biosynthetic process regulation of DNA-templated transcription regulation of cellular component organization organelle assembly regulation of cytoplasmic mRNA processing body assembly P-body assembly membraneless organelle assembly regulation of cellular component biogenesis regulation of organelle organization cellular component biogenesis cellular component organization organelle organization cellular component assembly regulation of organelle assembly cellular component organization or biogenesis	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol cell periphery plasma membrane membrane protein kinase complex transferase complex, transferring phosphorus-containing groups protein-containing complex catalytic complex cAMP-dependent protein kinase complex serine/threonine protein kinase complex transferase complex cellular anatomical structure intracellular anatomical structure cytoplasm cytosol cell periphery plasma membrane membrane protein kinase complex transferase complex, transferring phosphorus-containing groups protein-containing complex catalytic complex cAMP-dependent protein kinase complex serine/threonine protein kinase complex transferase complex intracellular protein-containing complex intracellular organelle organelle membraneless organelle intracellular membraneless organelle chromatin chromosome membrane-bounded organelle nucleus intracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR050503	cAMP-dependent kinase regulatory chain	Family
A	IPR000595	Cyclic nucleotide-binding domain	Domain
A	IPR012198	cAMP-dependent protein kinase regulatory subunit	Family
A	IPR014710	RmlC-like jelly roll fold	Homologous Superfamily
A	IPR018488	Cyclic nucleotide-binding, conserved site	Conserved Site
A	IPR018490	Cyclic nucleotide-binding domain superfamily	Homologous Superfamily
A	IPR003117	cAMP-dependent protein kinase regulatory subunit, dimerization-anchoring 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.