Annotations: 1KPB

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
B	d1kpbb_	Alpha and beta proteins (a+b)	HIT-like	HIT-like	HIT (HINT, histidine triad) family of protein kinase-interacting proteins	Protein kinase C inhibitor-1, PKCI-1	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A	d1kpba_	Alpha and beta proteins (a+b)	HIT-like	HIT-like	HIT (HINT, histidine triad) family of protein kinase-interacting proteins	Protein kinase C inhibitor-1, PKCI-1	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	HIT-like	8034380	3000223	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	HIT-like	8034380	3000223	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)
B	NIR_SIR	e1kpbB1	A: a/b three-layered sandwiches	X: ETN0001 domain-like	H: ETN0001 domain-like	T: Mss4-like	F: NIR_SIR	ECOD (v294.1)
A	NIR_SIR	e1kpbA1	A: a/b three-layered sandwiches	X: ETN0001 domain-like	H: ETN0001 domain-like	T: Mss4-like	F: NIR_SIR	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.30.428.10	Alpha Beta	2-Layer Sandwich	HIT family, subunit A	HIT-like	CATH (4.3.0)
A	3.30.428.10	Alpha Beta	2-Layer Sandwich	HIT family, subunit A	HIT-like	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF01230	HIT domain (HIT)	HIT domain		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	HUMAN PROTEIN KINASE C INTERACTING PROTEIN 1 (ZINC PROTEIN)	binding nucleoside phosphate binding nucleotide binding heterocyclic compound binding small molecule binding hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in linear amides adenosine 5'-monophosphoramidase activity hydrolase activity catalytic activity hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds protein binding kinase binding protein kinase C binding enzyme binding binding nucleoside phosphate binding nucleotide binding heterocyclic compound binding small molecule binding hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in linear amides adenosine 5'-monophosphoramidase activity hydrolase activity catalytic activity hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds protein binding kinase binding protein kinase C binding enzyme binding protein kinase binding cysteine-type peptidase activity deSUMOylase activity ubiquitin-like protein peptidase activity peptidase activity catalytic activity, acting on a protein	cellular response to stimulus positive regulation of cell communication regulation of cellular process positive regulation of signal transduction response to stimulus signaling positive regulation of biological process regulation of signal transduction intracellular signal transduction cell communication positive regulation of response to stimulus regulation of intracellular signal transduction intracellular signaling cassette regulation of calcium-mediated signaling cellular response to stimulus positive regulation of cell communication regulation of cellular process positive regulation of signal transduction response to stimulus signaling positive regulation of biological process regulation of signal transduction intracellular signal transduction cell communication positive regulation of response to stimulus regulation of intracellular signal transduction intracellular signaling cassette regulation of calcium-mediated signaling positive regulation of calcium-mediated signaling signal transduction positive regulation of cellular process regulation of biological process regulation of signaling biological regulation positive regulation of intracellular signal transduction regulation of response to stimulus calcium-mediated signaling regulation of cell communication cellular process positive regulation of signaling RNA metabolic process regulation of primary metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process DNA-templated transcription regulation of RNA metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of biosynthetic 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 metabolic process regulation of macromolecule biosynthetic process regulation of DNA-templated transcription macromolecule metabolic process regulation of metabolic process signal transduction by p53 class mediator cell death apoptotic signaling pathway intrinsic apoptotic signaling pathway by p53 class mediator apoptotic process intrinsic apoptotic signaling pathway programmed cell death ribose phosphate metabolic process ribonucleotide catabolic process catabolic process organophosphate catabolic process carbohydrate derivative metabolic process nucleoside phosphate catabolic process purine nucleotide metabolic process ribonucleotide metabolic process nucleobase-containing small molecule metabolic process phosphate-containing compound metabolic process small molecule metabolic process purine ribonucleotide catabolic process phosphorus metabolic process nucleotide catabolic process nucleoside phosphate metabolic process purine nucleotide catabolic process carbohydrate derivative catabolic process purine-containing compound catabolic process nucleotide metabolic process nucleobase-containing compound catabolic process purine-containing compound metabolic process organophosphate metabolic process purine ribonucleotide metabolic process peptidyl-lysine modification protein desumoylation protein modification by small protein removal macromolecule modification peptidyl-amino acid modification protein metabolic process protein modification process post-translational protein modification protein modification by small protein conjugation or removal proteolysis	intracellular organelle cellular anatomical structure intracellular anatomical structure cytoskeleton organelle membraneless organelle intracellular membraneless organelle extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region extracellular space vesicle intracellular organelle cellular anatomical structure intracellular anatomical structure cytoskeleton organelle membraneless organelle intracellular membraneless organelle extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region extracellular space vesicle extracellular membrane-bounded organelle cytoplasm cytosol protein-containing complex catalytic complex nucleus membrane-enclosed lumen nuclear protein-containing complex intracellular membrane-bounded organelle intracellular organelle lumen histone deacetylase complex nucleoplasm organelle lumen nuclear lumen cell periphery plasma membrane membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR001310	Histidine triad (HIT) protein	Family
A, B	IPR011146	HIT-like domain	Domain
A, B	IPR036265	HIT-like superfamily	Homologous Superfamily
A, B	IPR019808	Histidine triad, conserved site	Conserved Site

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	Pharos: P49773	Gamstorp-Wohlfart syndrome myopathy Charcot-Marie-Tooth disease Inherited Peripheral Neuropathy schizophrenia peripheral neuropathy pancreatic ductal adenocarcinoma plasma cell myeloma acute myeloid leukemia muscle tissue disease nicotine dependence peripheral nervous system disease astrocytic tumor Crohn disease hereditary episodic ataxia Gamstorp-Wohlfart syndrome myopathy Charcot-Marie-Tooth disease Inherited Peripheral Neuropathy schizophrenia peripheral neuropathy pancreatic ductal adenocarcinoma plasma cell myeloma acute myeloid leukemia muscle tissue disease nicotine dependence peripheral nervous system disease astrocytic tumor Crohn disease hereditary episodic ataxia intellectual disability lung cancer muscular disease ovarian cancer bipolar disorder diabetes mellitus inflammatory bowel disease Isaac syndrome lymphoplasmacytic lymphoma

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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.