Annotations: 1DKS

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
B	d1dksb_	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)
A	d1dksa_	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)
B	SCOP2B Superfamily	Cell cycle regulatory proteins	8037340	3000311	SCOP2B (2022-06-29)
A	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)
B	Glyco_hydro_4C	e1dksB2	A: a/b three-layered sandwiches	X: DEATH domain	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F: Glyco_hydro_4C	ECOD (v294.1)
A	Terminase_6N	e1dksA2	A: a/b three-layered sandwiches	X: Fusion glycoprotein F2	H: MoeA-I/Ornithine decarboxylase-C/Reverse ferredoxin-like domain in RNA-polymerase	T: MoeA-I/Ornithine decarboxylase-C/Reverse ferredoxin-like domain in RNA-polymerase	F: Terminase_6N	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
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)
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)

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 ubiquitin binding ubiquitin-like protein binding kinase binding enzyme binding protein kinase binding cyclin-dependent protein serine/threonine kinase activator activity enzyme regulator activity protein serine/threonine kinase activator activity molecular function activator activity cyclin-dependent protein kinase regulator activity protein kinase regulator activity protein binding binding histone binding ubiquitin binding ubiquitin-like protein binding kinase binding enzyme binding protein kinase binding cyclin-dependent protein serine/threonine kinase activator activity enzyme regulator activity protein serine/threonine kinase activator activity molecular function activator activity cyclin-dependent protein kinase regulator 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 mitotic cell cycle regulation of biological process regulation of cellular process biological regulation cellular process cell cycle regulation of cell cycle mitotic cell cycle cell division	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 intracellular organelle lumen intracellular organelle 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 intracellular organelle lumen intracellular organelle cellular anatomical structure 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	IPR000789	Cyclin-dependent kinase, regulatory subunit	Family
A, B	IPR036858	Cyclin-dependent kinase, regulatory subunit superfamily	Homologous Superfamily

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