1ATP

2.2 angstrom refined crystal structure of the catalytic subunit of cAMP-dependent protein kinase complexed with MNATP and a peptide inhibitor

Present annotations:

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

Domain Annotation: SCOP/SCOPe Classification SCOP Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A [auth E]	d1atpe_	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	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
B [auth I]	d1atpi_	Peptides	cAMP-dependent protein kinase inhibitor	cAMP-dependent protein kinase inhibitor	cAMP-dependent protein kinase inhibitor	cAMP-dependent protein kinase inhibitor	house 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	e1atpE1	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 (4.2.0)
A [auth E]	3.30.200.20	Alpha Beta	2-Layer Sandwich	Phosphorylase Kinase	domain 1	CATH (4.2.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Identifier	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 Product Annotation Gene Product Annotation

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth E]	cAMP-DEPENDENT PROTEIN KINASE	catalytic activity protein kinase activity protein serine/threonine kinase activity AMP-activated protein kinase activity kinase activity transferase activity transferase activity, transferring phosphorus-containing groups phosphotransferase activity, alcohol group as acceptor catalytic activity, acting on a protein cyclic nucleotide-dependent protein kinase activity cAMP-dependent protein kinase activity binding manganese ion binding ion binding cation binding metal ion binding transition metal ion binding protein binding protein domain specific binding protein kinase A regulatory subunit binding protein kinase A binding enzyme binding kinase binding protein kinase binding protein serine kinase activity protein serine/threonine/tyrosine kinase activity protein-containing complex binding small GTPase binding GTPase binding ubiquitin protein ligase binding ubiquitin-like protein ligase binding	response to endogenous stimulus response to hormone cellular process response to organic substance cellular response to hormone stimulus response to chemical response to stimulus cellular response to stimulus cellular response to chemical stimulus response to parathyroid hormone cellular response to organic substance cellular response to parathyroid hormone stimulus cellular response to endogenous stimulus cell population proliferation positive regulation of cell population proliferation regulation of cell population proliferation positive regulation of biological process positive regulation of cellular process regulation of biological process regulation of cellular process biological regulation	intracellular anatomical structure cytoplasm cytoskeleton cilium axoneme plasma membrane bounded cell projection cytoplasm cell projection organelle membrane-bounded organelle non-membrane-bounded organelle intracellular organelle intracellular non-membrane-bounded organelle ciliary plasm cytoplasmic region cellular anatomical entity plasma membrane bounded cell projection cAMP-dependent protein kinase complex protein-containing complex transferase complex, transferring phosphorus-containing groups intracellular protein-containing complex catalytic complex serine/threonine protein kinase complex protein kinase complex transferase complex centrosome microtubule organizing center microtubule cytoskeleton ciliary base cytosol cell junction dendrite somatodendritic compartment neuron projection dendritic spine neuron spine synapse dendritic tree postsynapse Golgi apparatus endomembrane system intracellular membrane-bounded organelle membrane mitochondrion neuromuscular junction nucleus nucleoplasm nuclear body nuclear speck membrane-enclosed lumen nuclear lumen organelle lumen intracellular organelle lumen nucleotide-activated protein kinase complex perinuclear region of cytoplasm plasma membrane cell periphery plasma membrane raft membrane raft plasma membrane region membrane microdomain presynapse motile cilium sperm flagellum 9+2 motile cilium sperm midpiece
B [auth I]	PEPTIDE INHIBITOR PKI(5-24)	enzyme inhibitor activity protein kinase inhibitor activity cAMP-dependent protein kinase inhibitor activity cAMP-dependent protein kinase regulator activity kinase regulator activity kinase inhibitor activity protein kinase regulator activity enzyme regulator activity protein serine/threonine kinase inhibitor activity molecular function regulator activity molecular function inhibitor activity binding protein binding enzyme binding kinase binding protein kinase binding protein kinase A catalytic subunit binding protein kinase A binding	negative regulation of catalytic activity negative regulation of molecular function regulation of catalytic activity biological regulation regulation of molecular function	intracellular anatomical structure cytoplasm cellular anatomical entity nucleus organelle membrane-bounded organelle intracellular organelle intracellular membrane-bounded organelle

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 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.