Annotations: 1DKT

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1dkta_	Alpha and beta proteins (a+b)	Cell cycle regulatory proteins	Cell cycle regulatory proteins	Cell cycle regulatory proteins	CksHs1	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d1dktb_	Alpha and beta proteins (a+b)	Cell cycle regulatory proteins	Cell cycle regulatory proteins	Cell cycle regulatory proteins	CksHs1	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)
A	SCOP2B Superfamily	Cell cycle regulatory proteins	8037340	3000311	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Cell cycle regulatory proteins	8037340	3000311	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	CKS	e1dktA2	A: a+b complex topology	X: Cell cycle regulatory proteins (From Topology)	H: Cell cycle regulatory proteins (From Topology)	T: Cell cycle regulatory proteins	F: CKS	ECOD (1.6)
B	CKS	e1dktB2	A: a+b complex topology	X: Cell cycle regulatory proteins (From Topology)	H: Cell cycle regulatory proteins (From Topology)	T: Cell cycle regulatory proteins	F: CKS	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.170.10	Alpha Beta	2-Layer Sandwich	Cyclin-Dependent Kinase Subunit Type 2	Cyclin-dependent kinase, regulatory subunit	CATH (4.3.0)
B	3.30.170.10	Alpha Beta	2-Layer Sandwich	Cyclin-Dependent Kinase Subunit Type 2	Cyclin-dependent kinase, regulatory subunit	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF01111	Cyclin-dependent kinase regulatory subunit (CKS)	Cyclin-dependent kinase regulatory subunit	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	CYCLIN DEPENDENT KINASE SUBUNIT, TYPE 1	protein binding binding histone binding kinase binding enzyme binding protein kinase binding ubiquitin binding ubiquitin-like protein binding cyclin-dependent protein serine/threonine kinase activator activity enzyme regulator activity protein serine/threonine kinase activator activity molecular function activator activity protein kinase regulator activity kinase activator activity protein binding binding histone binding kinase binding enzyme binding protein kinase binding ubiquitin binding ubiquitin-like protein binding cyclin-dependent protein serine/threonine kinase activator activity enzyme regulator activity protein serine/threonine kinase activator activity molecular function activator activity protein kinase regulator activity kinase activator activity enzyme activator activity cyclin-dependent protein serine/threonine kinase regulator activity molecular function regulator activity protein kinase activator activity kinase regulator activity	regulation of cellular process cellular biosynthetic process 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 regulation of biological process cellular metabolic process regulation of cellular process cellular biosynthetic process 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 regulation of biological process cellular metabolic process biological regulation primary metabolic process regulation of cellular metabolic process regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process regulation of cellular biosynthetic process regulation of gene expression biosynthetic process metabolic process regulation of macromolecule biosynthetic process cellular process regulation of DNA-templated transcription macromolecule metabolic process regulation of metabolic process fibroblast proliferation cell population proliferation regulation of mitotic cell cycle cell cycle regulation of cell cycle mitotic cell cycle cell division mitotic cell cycle process cell cycle phase transition mitotic cell cycle phase transition cell cycle process	protein kinase complex transferase complex, transferring phosphorus-containing groups protein-containing complex catalytic complex serine/threonine protein kinase complex cyclin-dependent protein kinase holoenzyme complex transferase complex membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle cellular anatomical entity intracellular organelle lumen protein kinase complex transferase complex, transferring phosphorus-containing groups protein-containing complex catalytic complex serine/threonine protein kinase complex cyclin-dependent protein kinase holoenzyme complex transferase complex membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle cellular anatomical entity intracellular organelle lumen intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen cullin-RING ubiquitin ligase complex ubiquitin ligase complex SCF ubiquitin ligase complex intracellular protein-containing complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR036858	Cyclin-dependent kinase, regulatory subunit superfamily	Homologous Superfamily
A, B	IPR000789	Cyclin-dependent kinase, regulatory subunit	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	Pharos: P61024	atrial fibrillation cutaneous melanoma prostate carcinoma attention deficit hyperactivity disorder, inattentive type inflammatory bowel disease skin basal cell carcinoma breast carcinoma ovarian carcinoma

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.