CDK9

Cyclin-dependent kinase 9 (CDC2-related kinase)
Identifiers
Symbols	CDK9 ; C-2k; CDC2L4; PITALRE; TAK
External IDs	Template:OMIM5 Template:MGI HomoloGene: 55566
Gene ontology Molecular function Template:GNF GO Template:GNF GO Template:GNF GO Template:GNF GO Template:GNF GO Template:GNF GO Template:GNF GO Cellular component Template:GNF GO Template:GNF GO Biological process Template:GNF GO Template:GNF GO Template:GNF GO Template:GNF GO Template:GNF GO Template:GNF GO Template:GNF GO
RNA expression pattern
More reference expression data
Orthologs
Template:GNF Ortholog box
Species	Human	Mouse
Entrez	n/a	n/a
Ensembl	n/a	n/a
UniProt	n/a	n/a
RefSeq (mRNA)	n/a	n/a
RefSeq (protein)	n/a	n/a
Location (UCSC)	n/a	n/a
PubMed search	n/a	n/a

CDK9 or cyclin-dependent kinase 9 is a cyclin-dependent kinase associated with P-TEFb. 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. CDK9 is also known to associate with other proteins such as TRAF2, and be involved in differentiation of skeletal muscle.

Further reading

• Jeang KT (1998). "Tat, Tat-associated kinase, and transcription". J. Biomed. Sci. 5 (1): 24–7. PMID 9570510.
• Yankulov K, Bentley D (1998). "Transcriptional control: Tat cofactors and transcriptional elongation". Curr. Biol. 8 (13): R447–9. PMID 9651670.
• Romano G, Kasten M, De Falco G; et al. (2000). "Regulatory functions of Cdk9 and of cyclin T1 in HIV tat transactivation pathway gene expression". J. Cell. Biochem. 75 (3): 357–68. PMID 10536359.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Marcello A, Zoppé M, Giacca M (2002). "Multiple modes of transcriptional regulation by the HIV-1 Tat transactivator". IUBMB Life. 51 (3): 175–81. PMID 11547919.CS1 maint: Multiple names: authors list (link)
• Huigen MC, Kamp W, Nottet HS (2004). "Multiple effects of HIV-1 trans-activator protein on the pathogenesis of HIV-1 infection". Eur. J. Clin. Invest. 34 (1): 57–66. PMID 14984439.CS1 maint: Multiple names: authors list (link)
• Rice AP, Herrmann CH (2004). "Regulation of TAK/P-TEFb in CD4+ T lymphocytes and macrophages". Curr. HIV Res. 1 (4): 395–404. PMID 15049426.
• Minghetti L, Visentin S, Patrizio M; et al. (2004). "Multiple actions of the human immunodeficiency virus type-1 Tat protein on microglial cell functions". Neurochem. Res. 29 (5): 965–78. PMID 15139295.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Liou LY, Herrmann CH, Rice AP (2005). "HIV-1 infection and regulation of Tat function in macrophages". Int. J. Biochem. Cell Biol. 36 (9): 1767–75. doi:10.1016/j.biocel.2004.02.018. PMID 15183343.CS1 maint: Multiple names: authors list (link)
• Pugliese A, Vidotto V, Beltramo T; et al. (2005). "A review of HIV-1 Tat protein biological effects". Cell Biochem. Funct. 23 (4): 223–7. doi:10.1002/cbf.1147. PMID 15473004.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Bannwarth S, Gatignol A (2005). "HIV-1 TAR RNA: the target of molecular interactions between the virus and its host". Curr. HIV Res. 3 (1): 61–71. PMID 15638724.
• Gibellini D, Vitone F, Schiavone P, Re MC (2005). "HIV-1 tat protein and cell proliferation and survival: a brief review". New Microbiol. 28 (2): 95–109. PMID 16035254.CS1 maint: Multiple names: authors list (link)
• Peruzzi F (2006). "The multiple functions of HIV-1 Tat: proliferation versus apoptosis". Front. Biosci. 11: 708–17. PMID 16146763.

External links

• Cyclin-Dependent+Kinase+9 at the US National Library of Medicine Medical Subject Headings (MeSH)