2IVX

Crystal structure of human cyclin T2 at 1.8 A resolution

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
Pharos: Disease Associations

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
B	d2ivxb1	All alpha proteins	Cyclin-like	Cyclin-like	Cyclin	Cyclin-T2	HUMAN (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A	d2ivxa1	All alpha proteins	Cyclin-like	Cyclin-like	Cyclin	Cyclin-T2	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	Cyclin-like	8034595	3000768	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Cyclin-like	8034596	3000768	SCOP2B (2022-06-29)
A	SCOP2 Family	Cyclin	8022215	4001102	SCOP2 (2022-06-29)
A	SCOP2 Family	Cyclin	8022216	4001102	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Cyclin-like	8034595	3000768	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Cyclin-like	8034596	3000768	SCOP2 (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	KOG0834	e2ivxB2	A: alpha arrays	X: HTH	H: HTH	T: Cyclin-like	F: KOG0834	ECOD (1.6)
B	Cyclin_N_1	e2ivxB1	A: alpha arrays	X: HTH	H: HTH	T: Cyclin-like	F: Cyclin_N_1	ECOD (1.6)
A	KOG0834	e2ivxA2	A: alpha arrays	X: HTH	H: HTH	T: Cyclin-like	F: KOG0834	ECOD (1.6)
A	Cyclin_N_1	e2ivxA1	A: alpha arrays	X: HTH	H: HTH	T: Cyclin-like	F: Cyclin_N_1	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	1.10.472.10	Mainly Alpha	Orthogonal Bundle	Cyclin A	domain 1	CATH (4.3.0)
A	1.10.472.10	Mainly Alpha	Orthogonal Bundle	Cyclin A	domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00134	Cyclin, N-terminal domain (Cyclin_N)	Cyclin, N-terminal domain	Cyclins regulate cyclin dependent kinases (CDKs). Swiss:P22674 is a Uracil-DNA glycosylase that is related to other cyclins [4]. Cyclins contain two domains of similar all-alpha fold, of which this family corresponds with the N-terminal domain.	Domain
A, B	PF21797	Cyclin-T2-like, C-terminal domain (CycT2-like_C)	Cyclin-T2-like, C-terminal domain	This domain is found at the C-terminal end of human Cyclin-T2 (CycT2) and similar animal sequences. CycT2 is the regulatory subunit of the cyclin-dependent kinase pair (CDK9/cyclin T) complex, also called positive transcription elongation factor B (P ...	This domain is found at the C-terminal end of human Cyclin-T2 (CycT2) and similar animal sequences. CycT2 is the regulatory subunit of the cyclin-dependent kinase pair (CDK9/cyclin T) complex, also called positive transcription elongation factor B (P-TEFB). This domain adopts s cyclin box fold consisting of five helices and a short C-terminal helix [2].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	CYCLIN-T2	chromatin binding binding RNA polymerase binding protein binding enzyme binding RNA binding snRNA binding organic cyclic compound binding 7SK snRNA binding nucleic acid binding cyclin-dependent protein serine/threonine kinase activator activity enzyme regulator activity protein serine/threonine kinase activator activity molecular function activator activity chromatin binding binding RNA polymerase binding protein binding enzyme binding RNA binding snRNA binding organic cyclic compound binding 7SK snRNA binding nucleic acid 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 kinase binding protein kinase binding transcription factor binding transcription coregulator binding transcription coactivator binding	viral gene expression viral process early viral transcription viral transcription regulation of cellular process positive regulation of DNA-templated transcription positive regulation of biological process RNA metabolic process positive regulation of macromolecule biosynthetic process regulation of primary metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process positive regulation of metabolic process viral gene expression viral process early viral transcription viral transcription regulation of cellular process positive regulation of DNA-templated transcription positive regulation of biological process RNA metabolic process positive regulation of macromolecule biosynthetic process regulation of primary metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process positive regulation of metabolic process DNA-templated transcription regulation of RNA metabolic process positive regulation of DNA-templated transcription, elongation positive regulation of biosynthetic process positive regulation of macromolecule metabolic process regulation of nucleobase-containing compound metabolic process positive regulation of cellular process regulation of RNA biosynthetic process regulation of biosynthetic process regulation of DNA-templated transcription elongation regulation of biological process positive regulation of nucleobase-containing compound metabolic process biological regulation primary metabolic process regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process positive regulation of RNA metabolic process regulation of gene expression DNA-templated transcription elongation biosynthetic process positive regulation of RNA biosynthetic process metabolic process cellular process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of DNA-templated transcription regulation of metabolic process cell division transcription by RNA polymerase II late viral transcription developmental process muscle structure development skeletal muscle organ development skeletal muscle tissue development anatomical structure development animal organ development muscle tissue development muscle organ development tissue development striated muscle tissue development regulation of developmental process cellular developmental process regulation of cell differentiation muscle cell differentiation regulation of muscle cell differentiation cell differentiation biological process involved in interspecies interaction between organisms modulation by host of symbiont process biological process involved in interaction with symbiont positive regulation by host of viral transcription biological process involved in symbiotic interaction regulation of transcription by RNA polymerase II transcription elongation by RNA polymerase II positive regulation of transcription elongation by RNA polymerase II regulation of transcription elongation by RNA polymerase II positive regulation of transcription by RNA polymerase II regulation of protein modification process regulation of catalytic activity regulation of protein phosphorylation regulation of cyclin-dependent protein kinase activity regulation of transferase activity regulation of cyclin-dependent protein serine/threonine kinase activity regulation of phosphate metabolic process phosphate-containing compound metabolic process protein metabolic process cell cycle phosphorus metabolic process protein modification process regulation of cell cycle protein phosphorylation phosphorylation regulation of protein metabolic process regulation of protein kinase activity regulation of molecular function regulation of kinase activity macromolecule modification regulation of protein serine/threonine kinase activity regulation of phosphorylation regulation of phosphorus metabolic process	membrane-bounded organelle protein-containing complex intracellular anatomical structure transcription elongation factor complex nucleus membrane-enclosed lumen nuclear protein-containing complex transferase complex intracellular organelle lumen protein kinase complex intracellular organelle cellular anatomical structure nucleoplasm catalytic complex membrane-bounded organelle protein-containing complex intracellular anatomical structure transcription elongation factor complex nucleus membrane-enclosed lumen nuclear protein-containing complex transferase complex intracellular organelle lumen protein kinase complex intracellular organelle cellular anatomical structure nucleoplasm catalytic complex cyclin/CDK positive transcription elongation factor complex cyclin-dependent protein kinase holoenzyme complex intracellular membrane-bounded organelle transferase complex, transferring phosphorus-containing groups organelle lumen carboxy-terminal domain protein kinase complex organelle serine/threonine protein kinase complex nuclear cyclin-dependent protein kinase holoenzyme complex nuclear lumen cytoplasm cytosol cell periphery plasma membrane membrane perinuclear region of cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR047321	Cyclin-T2, first cyclin box	Domain
A, B	IPR006671	Cyclin, N-terminal	Domain
A, B	IPR047322	Cyclin-T2, second cyclin box	Domain
A, B	IPR036915	Cyclin-like superfamily	Homologous Superfamily
A, B	IPR043198	Cyclin/Cyclin-like subunit Ssn8	Family
A, B	IPR013763	Cyclin-like domain	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	Pharos: O60583	acute myeloid leukemia ovarian cancer dermatomyositis Pick disease medulloblastoma progressive supranuclear palsy

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.