3FJQ

Crystal structure of cAMP-dependent protein kinase catalytic subunit alpha in complex with peptide inhibitor PKI alpha (6-25)

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Protein Modification Annotation

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A [auth E]	d3fjqe_	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	mouse (Mus musculus ) [TaxId: 10090 ],	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)	8040503	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	e3fjqE1	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

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth E]	cAMP-dependent protein kinase catalytic subunit alpha	small GTPase binding protein binding binding enzyme binding GTPase 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 small GTPase binding protein binding binding enzyme binding GTPase 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 cation binding manganese ion binding transition metal ion binding ion binding metal ion binding small molecule binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding protein-containing complex binding ubiquitin protein ligase binding ubiquitin-like protein ligase binding protein domain specific binding protein serine/threonine/tyrosine kinase activity cyclic nucleotide-dependent protein kinase activity cAMP-dependent protein kinase activity protein serine kinase activity magnesium ion binding kinase binding protein kinase binding protein kinase A binding protein kinase A regulatory subunit binding	developmental process spermatid development spermatid differentiation sexual reproduction cellular developmental process spermatogenesis reproductive process multicellular organismal reproductive process cell development cellular process involved in reproduction in multicellular organism developmental maturation developmental process involved in reproduction gamete generation male gamete generation sperm capacitation developmental process spermatid development spermatid differentiation sexual reproduction cellular developmental process spermatogenesis reproductive process multicellular organismal reproductive process cell development cellular process involved in reproduction in multicellular organism developmental maturation developmental process involved in reproduction gamete generation male gamete generation sperm capacitation anatomical structure maturation cell differentiation anatomical structure development germ cell development cellular process cell maturation protein localization cellular localization establishment of protein localization nitrogen compound transport nucleocytoplasmic transport transport nuclear transport intracellular transport protein export from nucleus establishment of localization localization protein transport establishment of localization in cell cellular macromolecule localization macromolecule localization nuclear export intracellular protein transport 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 response to temperature stimulus RNA metabolic process primary metabolic process gene expression nucleobase-containing compound biosynthetic process mRNA processing mRNA metabolic process macromolecule biosynthetic process nucleic acid metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process biosynthetic process metabolic process macromolecule metabolic process RNA processing multicellular organismal process embryonic epithelial tube formation chordate embryonic development tube formation embryo development multicellular organism development epithelial tube formation tube morphogenesis primary neural tube formation embryo development ending in birth or egg hatching epithelial tube morphogenesis system development morphogenesis of embryonic epithelium epithelium development neural tube development tube development embryonic morphogenesis morphogenesis of an epithelium nervous system development tissue development anatomical structure morphogenesis tissue morphogenesis neural tube closure neural tube formation anatomical structure formation involved in morphogenesis tube closure trans-synaptic signaling regulation of biological process regulation of signaling regulation of cellular process modulation of chemical synaptic transmission signaling biological regulation cell-cell signaling chemical synaptic transmission cell communication synaptic signaling regulation of trans-synaptic signaling anterograde trans-synaptic signaling regulation of cell communication postsynaptic modulation of chemical synaptic transmission protein phosphorylation phosphorylation peptidyl-serine modification peptidyl-serine phosphorylation macromolecule modification peptidyl-amino acid modification phosphate-containing compound metabolic process protein metabolic process protein modification process phosphorus metabolic process catabolic process proteolysis involved in protein catabolic process macromolecule catabolic process regulation of primary metabolic process regulation of proteolysis involved in protein catabolic process regulation of proteolysis proteolysis regulation of protein metabolic process proteasomal protein catabolic process regulation of macromolecule metabolic process protein catabolic process regulation of catabolic process regulation of proteasomal protein catabolic process regulation of metabolic process regulation of protein catabolic process negative regulation of biological process negative regulation of RNA biosynthetic process DNA-templated transcription regulation of RNA metabolic process transcription by RNA polymerase II negative regulation of cellular process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process negative regulation of macromolecule metabolic process regulation of biosynthetic 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 metabolic process regulation of gene expression negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process regulation of macromolecule biosynthetic process regulation of DNA-templated transcription negative regulation of RNA metabolic process formation of primary germ layer mesoderm morphogenesis gastrulation mesoderm formation mesoderm development regulation of osteoblast differentiation regulation of developmental process regulation of cell differentiation osteoblast differentiation ossification monosaccharide metabolic process positive regulation of biological process gluconeogenesis positive regulation of metabolic process regulation of small molecule metabolic process positive regulation of biosynthetic process small molecule metabolic process regulation of carbohydrate metabolic process regulation of glucose metabolic process positive regulation of cellular process positive regulation of gluconeogenesis carbohydrate metabolic process small molecule biosynthetic process carbohydrate biosynthetic process hexose metabolic process monosaccharide biosynthetic process hexose biosynthetic process positive regulation of glucose metabolic process regulation of gluconeogenesis positive regulation of carbohydrate metabolic process regulation of carbohydrate biosynthetic process positive regulation of small molecule metabolic process glucose metabolic process homeostatic process response to oxygen-containing compound cellular response to glucose stimulus intracellular glucose homeostasis cellular response to oxygen-containing compound response to hexose cellular response to carbohydrate stimulus cellular response to chemical stimulus cellular homeostasis response to monosaccharide response to carbohydrate chemical homeostasis response to glucose response to chemical glucose homeostasis carbohydrate homeostasis cellular response to hexose stimulus intracellular chemical homeostasis cellular response to monosaccharide stimulus cellular response to nitrogen compound response to endogenous stimulus response to peptide hormone cellular response to peptide hormone stimulus response to nitrogen compound response to glucagon cellular response to glucagon stimulus cellular response to endogenous stimulus response to hormone cellular response to hormone stimulus intracellular signal transduction protein kinase A signaling signal transduction bicellular tight junction assembly regulation of bicellular tight junction assembly regulation of cellular component organization tight junction organization apical junction assembly regulation of cellular component biogenesis cellular component organization cellular component biogenesis regulation of cell junction assembly cell junction organization cellular component assembly cell junction assembly tight junction assembly cellular component organization or biogenesis cell-cell junction assembly cell-cell junction organization negative regulation of signaling regulation of signal transduction negative regulation of cell communication negative regulation of smoothened signaling pathway regulation of smoothened signaling pathway cell surface receptor signaling pathway negative regulation of response to stimulus negative regulation of signal transduction smoothened signaling pathway regulation of response to stimulus regulation of protein maturation protein maturation regulation of protein processing protein processing regulated exocytosis synaptic vesicle cycle synaptic vesicle exocytosis vesicle-mediated transport vesicle-mediated transport in synapse secretion by cell signal release spontaneous exocytosis of neurotransmitter neurotransmitter secretion secretion export from cell neurotransmitter transport signal release from synapse exocytosis adenylate cyclase-activating G protein-coupled receptor signaling pathway adenylate cyclase-modulating G protein-coupled receptor signaling pathway G protein-coupled receptor signaling pathway cell population proliferation positive regulation of cell population proliferation regulation of cell population proliferation regulation of localization regulation of protein localization positive regulation of nucleocytoplasmic transport positive regulation of establishment of protein localization positive regulation of protein transport positive regulation of intracellular transport regulation of protein export from nucleus regulation of intracellular transport regulation of transport regulation of establishment of protein localization regulation of nucleocytoplasmic transport regulation of protein transport positive regulation of protein export from nucleus positive regulation of transport regulation of cellular localization positive regulation of protein localization regulation of intracellular protein transport positive regulation of intracellular protein transport protein localization to organelle protein localization to lipid droplet cellular response to parathyroid hormone stimulus response to parathyroid hormone ribonucleotide catabolic process pyridine nucleotide catabolic process negative regulation of small molecule metabolic process negative regulation of glycolytic process oxoacid metabolic process carbohydrate catabolic process organophosphate catabolic process carbohydrate derivative metabolic process regulation of generation of precursor metabolites and energy nucleoside phosphate catabolic process organic acid metabolic process negative regulation of ATP metabolic process regulation of ATP metabolic process regulation of purine nucleotide catabolic process negative regulation of nucleotide metabolic process glycolytic process regulation of nucleotide metabolic process regulation of phosphate metabolic process pyridine-containing compound metabolic process purine ribonucleotide catabolic process pyridine nucleotide metabolic process negative regulation of carbohydrate metabolic process nucleoside phosphate metabolic process nicotinamide nucleotide metabolic process pyruvate metabolic process regulation of carbohydrate catabolic process negative regulation of purine nucleotide catabolic process purine nucleoside diphosphate metabolic process purine-containing compound catabolic process nucleotide metabolic process regulation of purine nucleotide metabolic process nucleobase-containing compound catabolic process nucleoside diphosphate metabolic process purine nucleoside diphosphate catabolic process nucleoside diphosphate catabolic process regulation of nucleotide catabolic process regulation of phosphorus metabolic process nucleoside triphosphate metabolic process monocarboxylic acid metabolic process purine ribonucleotide metabolic process pyridine-containing compound catabolic process ribose phosphate metabolic process ATP metabolic process negative regulation of purine nucleotide metabolic process negative regulation of phosphate metabolic process purine nucleotide metabolic process ribonucleotide metabolic process nucleobase-containing small molecule metabolic process purine ribonucleoside triphosphate metabolic process ribonucleoside diphosphate metabolic process ribonucleoside diphosphate catabolic process nucleotide catabolic process ribonucleoside triphosphate metabolic process negative regulation of nucleotide catabolic process negative regulation of catabolic process purine nucleoside triphosphate metabolic process purine nucleotide catabolic process carbohydrate derivative catabolic process regulation of glycolytic process through fructose-6-phosphate ADP catabolic process carboxylic acid metabolic process generation of precursor metabolites and energy regulation of glycolytic process purine-containing compound metabolic process ADP metabolic process organophosphate metabolic process negative regulation of phosphorus metabolic process purine ribonucleoside diphosphate metabolic process purine ribonucleoside diphosphate catabolic process negative regulation of glycolytic process through fructose-6-phosphate glycolytic process through fructose-6-phosphate negative regulation of intracellular signal transduction negative regulation of TORC1 signaling regulation of intracellular signal transduction negative regulation of TOR signaling regulation of TORC1 signaling TOR signaling regulation of TOR signaling TORC1 signaling cellular response to cold response to cold synaptic transmission, glutamatergic regulation of synaptic transmission, glutamatergic cell cycle regulation of cell cycle positive regulation of cell communication positive regulation of insulin secretion regulation of biological quality regulation of peptide hormone secretion regulation of hormone levels positive regulation of peptide hormone secretion establishment of protein localization to extracellular region protein secretion regulation of protein secretion regulation of secretion regulation of hormone secretion regulation of peptide secretion positive regulation of secretion by cell hormone secretion protein localization to extracellular region peptide secretion regulation of secretion by cell positive regulation of hormone secretion positive regulation of secretion amide transport positive regulation of peptide secretion regulation of peptide transport positive regulation of protein secretion peptide transport regulation of insulin secretion peptide hormone secretion hormone transport insulin secretion positive regulation of signaling cellular respiration energy derivation by oxidation of organic compounds regulation of cellular respiration regulation of meiotic cell cycle regulation of reproductive process meiotic cell cycle negative regulation of cell cycle negative regulation of reproductive process negative regulation of meiotic cell cycle	membrane-bounded organelle intracellular anatomical structure axoneme ciliary plasm cilium intracellular membraneless organelle cytoplasmic region plasma membrane bounded cell projection cytoplasm plasma membrane bounded cell projection intracellular organelle cell projection cellular anatomical structure cytoskeleton organelle membrane-bounded organelle intracellular anatomical structure axoneme ciliary plasm cilium intracellular membraneless organelle cytoplasmic region plasma membrane bounded cell projection cytoplasm plasma membrane bounded cell projection intracellular organelle cell projection cellular anatomical structure cytoskeleton organelle membraneless organelle cytoplasm nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen nuclear speck nuclear body nucleoplasm organelle lumen nuclear lumen cytosol 9+2 motile cilium sperm flagellum motile cilium sperm midpiece synapse cell junction glutamatergic synapse neuromuscular junction neuron spine neuron projection dendritic spine somatodendritic compartment postsynapse dendrite dendritic tree perinuclear region of cytoplasm acrosomal vesicle intracellular vesicle endomembrane system cytoplasmic vesicle secretory granule secretory vesicle vesicle mitochondrion centrosome microtubule organizing center microtubule cytoskeleton cell periphery plasma membrane membrane presynapse protein-containing complex ciliary base protein kinase complex transferase complex, transferring phosphorus-containing groups catalytic complex cAMP-dependent protein kinase complex serine/threonine protein kinase complex transferase complex intracellular protein-containing complex membrane microdomain membrane raft plasma membrane raft plasma membrane region
B [auth I]	cAMP-dependent protein kinase inhibitor alpha	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 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 cellular localization negative regulation of nucleocytoplasmic transport nitrogen compound transport regulation of cellular process nucleocytoplasmic transport regulation of protein localization transport nuclear transport negative regulation of biological process negative regulation of intracellular protein transport regulation of protein localization to nucleus protein localization negative regulation of protein transport regulation of localization establishment of protein localization cellular localization negative regulation of nucleocytoplasmic transport nitrogen compound transport regulation of cellular process nucleocytoplasmic transport regulation of protein localization transport nuclear transport negative regulation of biological process negative regulation of intracellular protein transport regulation of protein localization to nucleus negative regulation of transport negative regulation of protein import into nucleus localization import into nucleus regulation of protein import into nucleus cellular macromolecule localization establishment of localization in cell protein import into nucleus negative regulation of cellular process regulation of intracellular transport negative regulation of protein localization negative regulation of intracellular transport regulation of biological process regulation of transport biological regulation regulation of establishment of protein localization negative regulation of establishment of protein localization intracellular transport regulation of nucleocytoplasmic transport protein localization to nucleus regulation of protein transport establishment of localization negative regulation of protein localization to nucleus establishment of protein localization to organelle protein transport regulation of cellular localization macromolecule localization protein localization to organelle regulation of intracellular protein transport cellular process intracellular protein transport RNA metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process regulation of RNA metabolic process transcription by RNA polymerase II negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process negative regulation of macromolecule metabolic process regulation of biosynthetic 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 metabolic process primary metabolic process regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process regulation of gene expression biosynthetic process negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process metabolic process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of DNA-templated transcription regulation of metabolic process negative regulation of RNA metabolic 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	cellular anatomical structure intracellular anatomical structure cytoplasm 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]	IPR000719	Protein kinase domain	Domain
A [auth E]	IPR044109	cAMP-dependent protein kinase catalytic subunit	Family
A [auth E]	IPR017441	Protein kinase, ATP binding site	Binding Site
A [auth E]	IPR000961	AGC-kinase, C-terminal	Domain
A [auth E]	IPR011009	Protein kinase-like domain superfamily	Homologous Superfamily
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

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.