Annotations: 1STC

Domain Annotation: SCOP/SCOPe Classification SCOP Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A [auth E]	d1stce_	Alpha and beta proteins (a+b)	Protein kinase-like (PK-like)	Protein kinase-like (PK-like)	Protein kinases, catalytic subunit	cAMP-dependent PK, catalytic subunit	cattle (Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A [auth E]	SCOP2B Superfamily	Protein kinase-like (PK-like)	8033774	3000066	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 [auth E]	Pkinase_Tyr	e1stcE1	A: a+b complex topology	X: Protein kinase/SAICAR synthase/ATP-grasp (From Homology)	H: Protein kinase/SAICAR synthase/ATP-grasp	T: Protein kinase	F: Pkinase_Tyr	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A [auth E]	1.10.510.10	Mainly Alpha	Orthogonal Bundle	Transferase(Phosphotransferase)	domain 1	CATH (4.3.0)
A [auth E]	3.30.200.20	Alpha Beta	2-Layer Sandwich	Phosphorylase Kinase	domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth E]	PF00069	Protein kinase domain (Pkinase)	Protein kinase domain	-	Domain
B [auth I]	PF02827	cAMP-dependent protein kinase inhibitor (PKI)	cAMP-dependent protein kinase inhibitor	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth E]	CAMP-DEPENDENT PROTEIN KINASE	protein binding binding protein domain specific binding protein serine/threonine kinase activity catalytic activity, acting on a protein kinase activity AMP-activated protein kinase activity protein kinase activity transferase activity catalytic activity phosphotransferase activity, alcohol group as acceptor transferase activity, transferring phosphorus-containing groups cyclic nucleotide-dependent protein kinase activity cAMP-dependent protein kinase activity protein binding binding protein domain specific binding protein serine/threonine kinase activity catalytic activity, acting on a protein kinase activity AMP-activated protein kinase activity protein kinase activity transferase activity catalytic activity phosphotransferase activity, alcohol group as acceptor transferase activity, transferring phosphorus-containing groups cyclic nucleotide-dependent protein kinase activity cAMP-dependent protein kinase activity protein serine kinase activity adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding protein kinase A binding protein kinase A regulatory subunit binding	cellular response to stimulus cellular response to heat response to stimulus cellular response to stress response to stress response to heat response to abiotic stimulus cellular process response to temperature stimulus regulation of biological process regulation of cellular process signaling biological regulation intracellular signal transduction cellular response to stimulus cellular response to heat response to stimulus cellular response to stress response to stress response to heat response to abiotic stimulus cellular process response to temperature stimulus regulation of biological process regulation of cellular process signaling biological regulation intracellular signal transduction cell communication protein kinase A signaling signal transduction protein phosphorylation organonitrogen compound metabolic process phosphorylation cellular metabolic process primary metabolic process organic substance metabolic process macromolecule modification phosphate-containing compound metabolic process metabolic process protein metabolic process macromolecule metabolic process protein modification process phosphorus metabolic process negative regulation of signaling negative regulation of intracellular signal transduction negative regulation of biological process regulation of signal transduction negative regulation of cell communication negative regulation of TORC1 signaling regulation of intracellular signal transduction negative regulation of TOR signaling negative regulation of cellular process regulation of TORC1 signaling TOR signaling regulation of signaling regulation of TOR signaling negative regulation of response to stimulus negative regulation of signal transduction regulation of response to stimulus regulation of cell communication TORC1 signaling peptidyl-serine modification peptidyl-serine phosphorylation peptidyl-amino acid modification developmental process multicellular organismal process formation of primary germ layer mesoderm morphogenesis embryonic morphogenesis tissue development embryo development gastrulation tissue morphogenesis anatomical structure morphogenesis multicellular organism development anatomical structure development anatomical structure formation involved in morphogenesis mesoderm formation mesoderm development	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle cytosol cell projection cilium 9+2 motile cilium sperm flagellum motile cilium membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle cytosol cell projection cilium 9+2 motile cilium sperm flagellum motile cilium plasma membrane bounded cell projection cell periphery plasma membrane membrane neuromuscular junction synapse cell junction perinuclear region of cytoplasm 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 nucleus acrosomal vesicle intracellular vesicle endomembrane system cytoplasmic vesicle secretory granule secretory vesicle vesicle
B [auth I]	PROTEIN KINASE INHIBITOR	molecular adaptor activity protein kinase A catalytic subunit binding protein binding binding protein kinase A binding kinase binding enzyme binding protein kinase 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 adaptor activity protein kinase A catalytic subunit binding protein binding binding protein kinase A binding kinase binding enzyme binding protein kinase 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 localization negative regulation of protein transport regulation of localization establishment of protein localization negative regulation of nucleocytoplasmic transport nitrogen compound transport regulation of cellular process nucleocytoplasmic transport nuclear transport negative regulation of biological process negative regulation of intracellular protein transport negative regulation of transport localization import into nucleus cellular macromolecule localization protein localization negative regulation of protein transport regulation of localization establishment of protein localization negative regulation of nucleocytoplasmic transport nitrogen compound transport regulation of cellular process nucleocytoplasmic transport nuclear transport negative regulation of biological process negative regulation of intracellular protein transport negative regulation of transport localization import into nucleus cellular macromolecule localization establishment of localization in cell regulation of intracellular transport regulation of biological process organic substance transport negative regulation of establishment of protein localization intracellular transport regulation of nucleocytoplasmic transport protein localization to nucleus establishment of localization establishment of protein localization to organelle regulation of intracellular protein transport intracellular protein transport cellular localization regulation of protein localization transport regulation of protein localization to nucleus negative regulation of protein import into nucleus regulation of protein import into nucleus protein import into nucleus negative regulation of cellular process negative regulation of protein localization negative regulation of intracellular transport regulation of transport biological regulation regulation of establishment of protein localization regulation of protein transport negative regulation of protein localization to nucleus protein transport regulation of cellular localization macromolecule localization protein localization to organelle cellular process regulation of catalytic activity negative regulation of catalytic activity regulation of transferase activity negative regulation of cellular metabolic process regulation of primary metabolic process negative regulation of kinase activity negative regulation of transferase activity regulation of phosphate metabolic process phosphate-containing compound metabolic process negative regulation of protein modification process phosphorus metabolic process protein modification process negative regulation of protein metabolic process protein phosphorylation phosphorylation cellular metabolic process regulation of protein metabolic process negative regulation of metabolic process regulation of cellular metabolic process primary metabolic process regulation of molecular function regulation of kinase activity negative regulation of protein phosphorylation regulation of protein serine/threonine kinase activity macromolecule modification regulation of phosphorus metabolic process metabolic process macromolecule metabolic process regulation of metabolic process regulation of protein modification process regulation of protein phosphorylation negative regulation of phosphate metabolic process negative regulation of cAMP-dependent protein kinase activity organic substance metabolic process regulation of cAMP-dependent protein kinase activity negative regulation of protein serine/threonine kinase activity protein metabolic process negative regulation of macromolecule metabolic process organonitrogen compound metabolic process negative regulation of molecular function regulation of protein kinase activity regulation of macromolecule metabolic process negative regulation of protein kinase activity negative regulation of phosphorus metabolic process regulation of phosphorylation negative regulation of phosphorylation negative regulation of RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription regulation of RNA metabolic process transcription by RNA polymerase II organic substance biosynthetic process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process regulation of transcription by RNA polymerase II negative regulation of DNA-templated transcription negative regulation of transcription by RNA polymerase II negative regulation of cellular biosynthetic process organic cyclic compound metabolic process regulation of gene expression biosynthetic process negative regulation of macromolecule biosynthetic process organic cyclic compound biosynthetic process regulation of macromolecule biosynthetic process regulation of DNA-templated transcription negative regulation of RNA metabolic process cellular biosynthetic process RNA metabolic process RNA biosynthetic process nucleic acid biosynthetic process regulation of RNA biosynthetic process regulation of biosynthetic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process regulation of cellular biosynthetic process negative regulation of biosynthetic process cell cycle G2/M phase transition regulation of cell cycle phase transition regulation of G2/M transition of mitotic cell cycle regulation of cell cycle process G2/M transition of mitotic cell cycle regulation of cell cycle G2/M phase transition cell cycle phase transition mitotic cell cycle regulation of mitotic cell cycle phase transition regulation of mitotic cell cycle mitotic cell cycle process cell cycle regulation of cell cycle cell cycle process mitotic cell cycle phase transition	intracellular anatomical structure cytoplasm cellular anatomical entity membrane-bounded organelle intracellular organelle organelle nucleus intracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth E]	IPR017441	Protein kinase, ATP binding site	Binding Site
A [auth E]	IPR000719	Protein kinase domain	Domain
A [auth E]	IPR000961	AGC-kinase, C-terminal	Domain
A [auth E]	IPR011009	Protein kinase-like domain superfamily	Homologous Superfamily
A [auth E]	IPR044109	cAMP-dependent protein kinase catalytic subunit	Family
A [auth E]	IPR008271	Serine/threonine-protein kinase, active site	Active Site
B [auth I]	IPR004171	cAMP-dependent protein kinase inhibitor	Family

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
A [auth E]	SEP	Parent Component: SER RESID: AA0037 PSI-MOD : O-phospho-L-serine MOD:00046
A [auth E]	TPO	Parent Component: THR RESID: AA0037 , AA0038 PSI-MOD : O-phospho-L-serine MOD:00046 , O-phospho-L-threonine MOD:00047

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

Chains	Enzyme Name	Description	Catalytic Residues
A [auth E]	cAMP-dependent protein kinase M-CSA #757	Cyclic adenosine 3',5'-monophosphate (cAMP) dependent protein kinase, otherwise known as protein kinase A (PKA) from Bos taurus catalyses the transfer of the gamma phosphate from ATP to a protein. This enzyme can phosphorylate a number of different proteins, one of which being the 70-kDa heat-shock protein (Hsp70). This results in the deactivation of Hsp70. Due to their key role in cellular signalling, defects in protein kinases are often associated with cancer and other diseases. This has resulted in PKA being one of the most studied protein kinases. Atypical protein kinase C iota (aPKC iota) has 21% similarity with PKA, sharing the same catalytic residues and thought to proceed through the same reaction mechanism. aPKC iota can phosphorylate a number of different proteins, including interleukin receptor-associated kinase. aPKCs play critical roles in signalling pathways that control cell growth, differentiation and survival. Therefore they constitute targets for the development of novel therapeutics against cancer, for aPKC iota, specifically colon cancer and chronic myelogenous leukemia.	Defined by 5 residues: ASP:A-166 [auth E-166]LYS:A-168 [auth E-168]ASN:A-171 [auth E-171]ASP:A-184 [auth E-184]THR:A-201 [auth E-201] \| Explore in 3D: M-CSA Motif Definition Search M-CSA Motif EC: 2.7.1.37 (PDB Primary Data) Search M-CSA Motif + EC 2.7.1.37

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.