1. Gene
  2. CDK9 - cyclin dependent kinase 9 Gene

CDK9 - cyclin dependent kinase 9 Gene

Homo sapiens

Also known as TAK; C-2k; CTK1; CDC2L4; PITALRE

Gene ID: 1025 | Gene type: protein coding

About CDK9

Cytogenetic location: 9q34.11 Genomic coordinates (GRCh38): 9:127,786,034-127,790,792 (from NCBI)

This gene has 5 transcripts (splice variants), 208 orthologues and 26 paralogues. Ubiquitous expression in ovary (RPKM 32.0), spleen (RPKM 23.0) and 25 other tissues.

Summary

The protein encoded by this gene is a member of the cyclin-dependent protein kinase (CDK) family. CDK family members are highly similar to the gene products of S. cerevisiae cdc28, and S. pombe cdc2, and known as important cell cycle regulators. This kinase was found to be a component of the multiprotein complex TAK/P-TEFb, which is an elongation factor for RNA polymerase II-directed transcription and functions by phosphorylating the C-terminal domain of the largest subunit of RNA polymerase II. This protein forms a complex with and is regulated by its regulatory subunit cyclin T or cyclin K. HIV-1 Tat protein was found to interact with this protein and cyclin T, which suggested a possible involvement of this protein in AIDS. [provided by RefSeq, Jul 2008]

CDK9 Products(1)

mRNA Protein Name
NM_001261.4 NP_001252.1 cyclin-dependent kinase 9
Gene Ontology
  • Molecular Function
  • Biological Process
  • Cellular Component
Molecular Function GO Annotation Evidence Reference Source
enables 7SK snRNA binding IDA
IDA: Inferred from direct assay
11713533 GOA
enables DNA binding IDA
IDA: Inferred from direct assay
16109376 GOA
enables RNA polymerase II CTD heptapeptide repeat kinase activity IDA
IDA: Inferred from direct assay
9499409 GOA
enables cyclin-dependent protein serine/threonine kinase activity IDA
IDA: Inferred from direct assay
12037670 GOA
enables kinase activity IDA
IDA: Inferred from direct assay
22959624 GOA
enables protein binding IPI
IPI: Inferred from physical interaction
9499409 GOA
enables protein serine/threonine kinase activity IDA
IDA: Inferred from direct assay
14701750 GOA
enables transcription coactivator binding IPI
IPI: Inferred from physical interaction
12037672 GOA
enables transcription elongation factor activity IDA
IDA: Inferred from direct assay
14580347 GOA
Biological Process GO Annotation Evidence Reference Source
involved in cellular response to cytokine stimulus IDA
IDA: Inferred from direct assay
17956865 GOA
involved in negative regulation of protein localization to chromatin IDA
IDA: Inferred from direct assay
14701750 GOA
involved in nucleus localization IDA
IDA: Inferred from direct assay
12942536 GOA
involved in positive regulation by host of viral transcription IDA
IDA: Inferred from direct assay
10866664 GOA
involved in positive regulation of protein localization to chromatin IDA
IDA: Inferred from direct assay
29335245 GOA
involved in positive regulation of transcription by RNA polymerase II IDA
IDA: Inferred from direct assay
29335245 GOA
involved in positive regulation of transcription elongation by RNA polymerase II IDA
IDA: Inferred from direct assay
9499409 GOA
acts upstream of or within protein phosphorylation IDA
IDA: Inferred from direct assay
16109376 GOA
involved in regulation of DNA repair IDA
IDA: Inferred from direct assay
20493174 GOA
involved in regulation of cell cycle IDA
IDA: Inferred from direct assay
20930849 GOA
involved in regulation of mRNA 3'-end processing IMP
IMP: Inferred from mutant phenotype
19575011 GOA
NOT involved in regulation of mitotic cell cycle IMP
IMP: Inferred from mutant phenotype
19575011 GOA
involved in regulation of muscle cell differentiation IMP
IMP: Inferred from mutant phenotype
12037670 GOA
involved in replication fork processing IDA
IDA: Inferred from direct assay
20930849 GOA
involved in transcription by RNA polymerase II IDA
IDA: Inferred from direct assay
28426094 GOA
involved in transcription elongation by RNA polymerase II IDA
IDA: Inferred from direct assay
14580347 GOA
involved in transcription elongation-coupled chromatin remodeling IDA
IDA: Inferred from direct assay
19844166 GOA
Cellular Component GO Annotation Evidence Reference Source
part of P-TEFb complex IDA
IDA: Inferred from direct assay
18483487 GOA
located in PML body IDA
IDA: Inferred from direct assay
18250157 GOA
part of cyclin/CDK positive transcription elongation factor complex IDA
IDA: Inferred from direct assay
9499409 GOA
part of cyclin/CDK positive transcription elongation factor complex IPI
IPI: Inferred from physical interaction
9499409 GOA
is active in nucleus IDA
IDA: Inferred from direct assay
14701750 GOA
located in nucleus IDA
IDA: Inferred from direct assay
9499409 GOA
part of transcription elongation factor complex IDA
IDA: Inferred from direct assay
22195968 GOA
EXP: Inferred from Experiment IDA: Inferred from direct assay IPI: Inferred from physical interaction IMP: Inferred from mutant phenotype IGI: Inferred from genetic interaction IEP: Inferred from expression pattern

CDK9 Protein Structure

Pkinase

Pkinase: Protein kinase domain (19 - 315)

  • 0
  • 100
  • 200
  • 300
  • 372 a.a.
Protein Preferred Names Protein Names

cyclin-dependent kinase 9

CDC2-related kinase

cell division cycle 2-like protein kinase 4

cell division protein kinase 9

serine/threonine protein kinase PITALRE

tat-associated kinase complex catalytic subunit

CDK9 Protein-protein interaction Information

Type
Protein Name Protein ID Interactor Interactor Species Interactor ID Detection Method Reference
Intra
CDK9 P50750 CLSPN Homo sapiens Q9HAW4
Anti Tag CoIP
20930849
Intra
CDK9 P50750 CLSPN Homo sapiens Q9HAW4
Anti Bait CoIP
20930849
Intra
CDK9 P50750 LARP7 Homo sapiens Q4G0J3
Anti Bait CoIP
18483487
Intra
CDK9 P50750 LARP7 Homo sapiens Q4G0J3
Anti Bait CoIP
26659056
Intra
CDK9 P50750 LARP7 Homo sapiens Q4G0J3
Anti Bait CoIP
20562857
Intra
CDK9 P50750 LARP7 Homo sapiens Q4G0J3
Pull Down
32707033
Intra
CDK9 P50750 LARP7 Homo sapiens Q4G0J3
Anti Tag CoIP
35271311
Intra
CDK9 P50750 LARP7 Homo sapiens Q4G0J3
Anti Tag CoIP
33961781
Intra
CDK9 P50750 LARP7 Homo sapiens Q4G0J3
TAP
23602568
Intra
CDK9 P50750 LARP7 Homo sapiens Q4G0J3
TAP
23455922
Intra
CDK9 P50750 CCNT1 Homo sapiens O60563
Anti Tag CoIP
33961781
Intra
CDK9 P50750 CCNT1 Homo sapiens O60563
X-Ray Diffraction
22959624
Intra
CDK9 P50750 CCNT1 Homo sapiens O60563
Anti Tag CoIP
21729782
Intra
CDK9 P50750 CCNT1 Homo sapiens O60563
X-Ray Diffraction
18566585
Intra
CDK9 P50750 CCNT1 Homo sapiens O60563
Anti Tag CoIP
21533037
Intra
CDK9 P50750 CCNT1 Homo sapiens O60563
Anti Bait CoIP
20153263
Intra
CDK9 P50750 CCNT1 Homo sapiens O60563
TAP
24981860
Intra
CDK9 P50750 CCNT1 Homo sapiens O60563
Anti Bait CoIP
20562857
Intra
CDK9 P50750 CCNT1 Homo sapiens O60563
TAP
23602568
Intra
CDK9 P50750 CCNT1 Homo sapiens O60563
Anti Bait CoIP
18483487
Intra
CDK9 P50750 CCNT1 Homo sapiens O60563
TAP
23455922
Intra
CDK9 P50750 CCNT1 Homo sapiens O60563
Protein Kinase Assay
19914168
Intra
CDK9 P50750 CCNT1 Homo sapiens O60563
Pull Down
32707033
Intra
CDK9 P50750 CCNT1 Homo sapiens O60563
Pull Down
20535204
Intra
CDK9 P50750 HEXIM1 Homo sapiens O94992
Anti Bait CoIP
20562857
Intra
CDK9 P50750 HEXIM1 Homo sapiens O94992
Anti Tag CoIP
33961781
Intra
CDK9 P50750 HEXIM1 Homo sapiens O94992
TAP
23455922
Intra
CDK9 P50750 HEXIM1 Homo sapiens O94992
Anti Bait CoIP
18483487
Intra
CDK9 P50750 HEXIM1 Homo sapiens O94992
Pull Down
32707033
Intra
CDK9 P50750 HEXIM1 Homo sapiens O94992
Anti Tag CoIP
35271311
Intra
CDK9 P50750 HEXIM1 Homo sapiens O94992
Anti Tag CoIP
21533037
Intra
CDK9 P50750 HEXIM1 Homo sapiens O94992
Anti Bait CoIP
24360279
Intra
CDK9 P50750 CCNT2 Homo sapiens O60583
Anti Tag CoIP
35271311
Intra
CDK9 P50750 CCNT2 Homo sapiens O60583
Anti Tag CoIP
21729782
Intra
CDK9 P50750 CCNT2 Homo sapiens O60583
Pull Down
32707033
Intra
CDK9 P50750 CCNT2 Homo sapiens O60583
TAP
24981860
Intra
CDK9 P50750 CCNT2 Homo sapiens O60583
Anti Tag CoIP
33961781
Intra
CDK9 P50750 CCNT2 Homo sapiens O60583
TAP
23602568
Intra
CDK9 P50750 CCNT2 Homo sapiens O60583
TAP
23455922
Intra
CDK9 P50750 CCNT2 Homo sapiens O60583
Pull Down
9499409
Intra
CDK9 P50750 CDC37 Homo sapiens Q16543
TAP
23455922
Intra
CDK9 P50750 CDC37 Homo sapiens Q16543
Anti Tag CoIP
33961781
Intra
CDK9 P50750 CDC37 Homo sapiens Q16543
Pull Down
32707033
Intra
CDK9 P50750 CDC37 Homo sapiens Q16543
Anti Tag CoIP
35271311
Intra
CDK9 P50750 CDC37 Homo sapiens Q16543
Lumier
25036637
Intra
CDK9 P50750 CDC37 Homo sapiens Q16543
TAP
24981860
Intra
CDK9 P50750 HSP90AA1 Homo sapiens P07900
Lumier
25036637
Intra
CDK9 P50750 HSP90AA1 Homo sapiens P07900
Anti Tag CoIP
33961781
Intra
CDK9 P50750 HSP90AA1 Homo sapiens P07900
TAP
23455922
Intra
CDK9 P50750 HSP90AA1 Homo sapiens P07900
Pull Down
32707033
Intra
CDK9 P50750 FKBP5 Homo sapiens Q13451
Lumier
25036637
Intra
CDK9 P50750 FKBP5 Homo sapiens Q13451
TAP
24981860
Intra
CDK9 P50750 FKBP5 Homo sapiens Q13451
TAP
23602568
Intra
CDK9 P50750 FKBP5 Homo sapiens Q13451
Anti Tag CoIP
33961781
Intra
CDK9 P50750 FKBP5 Homo sapiens Q13451
TAP
23455922
Intra
CDK9 P50750 FKBP5 Homo sapiens Q13451
Pull Down
32707033
Intra
CDK9 P50750 HSP90AB1 Homo sapiens P08238
Anti Tag CoIP
33961781
Intra
CDK9 P50750 HSP90AB1 Homo sapiens P08238
TAP
23455922
Intra
CDK9 P50750 HSP90AB1 Homo sapiens P08238
Pull Down
32707033
Intra
CDK9 P50750 STAT3 Homo sapiens P40763
Anti Bait CoIP
15286705
Intra
CDK9 P50750 ATRIP Homo sapiens Q8WXE1
Anti Bait CoIP
20930849
Intra
CDK9 P50750 ATRIP Homo sapiens Q8WXE1
Anti Tag CoIP
20930849
Intra
CDK9 P50750 JMJD6 Homo sapiens Q6NYC1
Anti Tag CoIP
24360279
Intra
CDK9 P50750 JMJD6 Homo sapiens Q6NYC1
Pull Down
24360279
Intra
CDK9 P50750 CCNT2 Homo sapiens O60583-2
Anti Bait CoIP
9499409
Intra
CDK9 P50750 CCNT2 Homo sapiens O60583-1
Anti Bait CoIP
9499409
Intra
CDK9 P50750 ATR Homo sapiens Q13535
Anti Bait CoIP
20930849
Intra
CDK9 P50750 ATR Homo sapiens Q13535
Anti Tag CoIP
20930849
Cross
CDK9 P50750 tat Human immunodeficiency virus P04608
Pull Down
20535204
Cross: Cross-species interaction Intra: Intraspecies interaction

Related Diseases

Diseases Alias
Leukemia, Acute Myeloid

Acute Myeloid Leukemia

Leukemia, Acute Myelogenous

Acute Myelogenous Leukemia

AML

Leukemia, Acute Myeloid, Susceptibility To

Acute Myeloblastic Leukemia

Leukemia, Acute Myeloid, Reduced Survival In, Somatic

Acute Myeloid Leukaemia

Leukemia, Myelocytic, Acute

Therapy Related Acute Myeloid Leukemia And Myelodysplastic Syndrome

Secondary Aml

Acute Myelocytic Leukemia

Leukemia, Myeloid, Acute

Acute Myeloid Leukemia, Somatic

Leukemia, Acute Myeloid, Somatic

Myeloid Leukemia, Acute, M4/M4eo Subtype, Somatic

Acute Myeloblastic Leukaemia

Acute Myelogenous Leukaemia

Aml - Acute Myeloid Leukemia

Acute Myeloid Leukemia With Cebpa Somatic Mutations

Aml With Cebpa Somatic Mutations

Inherited Acute Myeloid Leukemia

Familial Aml

Inherited Aml

Pure Familial Aml

Pure Familial Acute Myeloid Leukemia

Secondary Acute Myeloid Leukemia

Therapy-Related Aml And Myelodysplastic Syndrome

Acute Myeloid Leukemia, Secondary

Acute Non-Lymphoblastic Leukemia

Acute Non-Lymphocytic Leukemia

Acute Biphenotypic Leukemia

Acute Undifferentiated Leukemia

Acute Myeloblastic Leukaemia With Multilineage Dysplasia

Acute Myeloid Leukaemia With Multilineage Dysplasia Without Mention Of Remission

Acute Myeloid Leukaemia With Myelodysplasia-Related Features

Male Infertility

Infertility, Male

Infertility Male

Male Sterility

Absolute Infertility

Pontocerebellar Hypoplasia, Type 1e

Pontocerebellar Hypoplasia Type 1

PCH1E

Norman Disease

Pch1

Pontocerebellar Hypoplasia With Anterior Horn Cell Disease

Pontocerebellar Hypoplasia With Infantile Spinal Muscular Atrophy

Pontocerebellar Hypoplasia Type 1e

Pontocerebellar Hypoplasia 1e

Doid:0112322

Doid:0112330

Mantle Cell Lymphoma

Lymphoma, Mantle Cell

Lcm

Mcl

Mantle Zone Lymphoma

Lymphoma Mantle-Cell

Lymphoma, Mantle-Cell

Malignant Lymphoma, Lymphocytic, Intermediate Differentiation, Diffuse

Malignant Lymphoma - Lymphocytic, Intermediate Differentiation

Diffuse Small Cleaved-Cell Lymphoma

Diffuse Small Cleaved Cell Malignant Lymphoma

Small Cleaved Cell Non-Hodgkin Lymphoma

Diffuse Non-Hodgkin Small Cleaved Cell Lymphoma

Malignant Lymphomatous Polyposis

Malignant Small Cell, Noncleaved, Diffuse Lymphoma

Malignant Undifferentiated Cell, Non-Burkitt Lymphoma

Cleaved Cell Lymphoma

Small Cell Mantle Cell Lymphoma

Small Cleaved Cell Malignant Lymphoma

Hypothyroidism, Congenital, Nongoitrous, 6

CHNG6

Congenital Nongoitrous Hypothyroidism 6

Hypothyroidism, Congenital, Non-Goitrous, 6

Hypothyroidism, Congenital, Nongoitrous, Type 6

Nut Midline Carcinoma

Nuclear Protein In Testis Midline Carcinoma

Nmc

Leukemia, Chronic Lymphocytic

Chronic Lymphocytic Leukemia

B-Cell Chronic Lymphocytic Leukemia

CLL

B-Cell Chronic Lymphoid Leukemia

Chronic Lymphatic Leukemia

Chronic Lymphocytic Leukaemia

Lymphoplasmacytic Leukemia

Small Lymphocytic Lymphoma

Leukemia, Chronic Lymphatic

B-Cell Chronic Lymphocytic Leukaemia

Chronic Lymphatic Leukaemia

Lymphoplasmacytic Leukaemia

B Cell Chronic Lymphocytic Leukemia

Chronic B-Cell Lymphocytic Leukemia

Leukemia, Lymphocytic, Chronic

B-Cll

Chronic Lymphoid Leukemia

Leukemia Lymphocytic Chronic

Lymphoma Small Lymphocytic

Leukemia, Lymphocytic, Chronic, B-Cell

Human Immunodeficiency Virus Infectious Disease

Hiv Infections

Herpes Simplex

Herpes Simplex Infections

Herpesvirus Hominis Disease

Herpes Simplex Disease

Herpesviral Infection Due To Herpes Simplex

Infections Due To Simplex Virus

Herpes Nos

Immune Deficiency Disease

Immunodeficiency

Primary Immunodeficiency Disease

Primary Immunodeficiency

Immunologic Deficiency Syndromes

Hypoimmunity

Immune Deficiency Disorder

Immunodeficiency Syndrome

Immune Disorder

Primary Immune Deficiency Disorder

Immune System Diseases

Human Immunodeficiency Virus Infection

Hiv - [Human Immunodeficiency Virus Infection]

Hiv Positive Nos

Hiv Disease

Acquired Immune Deficiency Syndrome-Related Complex

Aids-Like Syndrome

Aids-Related Complex Nos

Arc - [Aids-Related Complex]

Immunodeficiency Due To Human Immunodeficiency Virus Infection

Unspecified Human Immunodeficiency Virus Disease

Hiv Disease Nos

Human Immunodeficiency Virus Positive Nos

Hiv Nos

Deficiency Of Complement Initial Pathway

Deficiency Of Complement Terminal Pathway

Cfdd - [Complement Factor D Deficiency]

Immunodeficiency With Nk-Cell - [Natural-Killer Cell] Deficiency

Nonfamilial Hypogammaglobulinaemia

Common Variable Immune Deficiency

Nonfamilial Agammaglobulinaemia

Common Variable Agammaglobulinaemia

Agammaglobulinaemia Nos

Agammaglobulinaemia Antibody Deficiency Syndrome

Hypogammaglobulinaemia Antibody Deficiency Syndrome

Acquired Agammaglobulinaemia Nos

Hypogammaglobulinaemia Nos

Hyper Igm

Charge Syndrome

Charge Association

Hall-Hittner Syndrome

Charge Association--Coloboma, Heart Anomaly, Choanal Atresia, Retardation, Genital And Ear Anomalies

Hhs

Coloboma, Heart Anomaly, Choanal Atresia, Restriction Of Growth And Development, Genital And Ear Anomalies

Coloboma-Heart Defects-Atresia Choanae-Retardation Of Growth And Development-Genitourinary Problems-Ear Abnormalities Syndrome

CHARGES

Diseases Alias
Waldenstroem'S Macroglobulinemia

Waldenstroem'S Macroglobulinemia

Waldenstroem'S Macroglobulinemia

Macroglobulinemia Of Waldenstrom

Lymphoplasmacytic Lymphoma With Igm Gammopathy

Lymphoplasmacytic Lymphoma

Waldenstroem'S Macroglobulinemia

Waldenstroem'S Macroglobulinemia

Macroglobulinemia Of Waldenstrom

Lymphoplasmacytic Lymphoma With Igm Gammopathy

Lymphoplasmacytic Lymphoma

Orthologs Information

Species Symbol Source ID
Mus musculus CDK9 MGD MGI:1328368
Macaca mulatta CDK9 VGNC VGNC:104886
Canis familiaris CDK9 VGNC VGNC:39062
Felis catus CDK9 VGNC VGNC:102911
Bos taurus CDK9 VGNC VGNC:27136
Rattus norvegicus CDK9 RGD RGD:1359638
Others CDK9 NCBI