Cdk9 Antibody


Western Blot: Cdk9 Antibody [NB120-10874] - 1) PC3 and 2) DU145 prostate cancer cells (50ug per lane). Bands at the expected MW of 55 and 42 Kda were detected. Personal communication Flavio Rizzolio, Temple University
Immunocytochemistry/ Immunofluorescence: Cdk9 Antibody [NB120-10874] - Immunocytochemical staining of mouse tissue using anti-cdk9 (PITALRE) antiserum. The staining shows the location of mcdk9/PITALRE protein in more

Product Details

Reactivity Hu, Mu, RtSpecies Glossary
Applications WB, ELISA, ICC/IF, IHC, IHC-P, IP

Order Details

Cdk9 Antibody Summary

This antibody was prepared from monospecific antiserum by delipidation and defibrination.
Multiple synthetic peptides corresponding to C-terminal and N-terminal domains of the protein coded by the human gene Cdk9 (PITALRE).
This does not cross react with other cyclin dependent kinases.
Delipidation and Defibrination
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  • Western Blot 1:500-1:3000
  • ELISA 1:10000-1:50000
  • Immunocytochemistry/Immunofluorescence 1:10-1:500
  • Immunohistochemistry 1:200-1:1000
  • Immunohistochemistry-Paraffin 1:10-1:500
  • Immunoprecipitation 1:100
Application Notes
This antibody has been tested for use in ELISA, immunoprecipitation, immunohistochemistry-Paraffin/Frozen and by western blot. Specific conditions for reactivity should be optimized by the end user. Expect a band at approximately 43 kDa corresponding to CDK9 (PITALRE) by western blotting in the appropriate cell lysate or extract.

Reactivity Notes

Cross reactivity against Cdk9 from other tissues and species may occur but has not been specifically tested.

Packaging, Storage & Formulations

Store at -20C. Avoid freeze-thaw cycles.
0.02 M Potassium Phosphate, 0.15 M Sodium Chloride, pH 7.2
0.01% Sodium Azide
Delipidation and Defibrination

Alternate Names for Cdk9 Antibody

  • C-2k
  • CDC2L4CTK1
  • CDC2-related kinase
  • Cell division cycle 2-like protein kinase 4
  • Cell division protein kinase 9
  • cyclin-dependent kinase 9 (CDC2-related kinase)
  • cyclin-dependent kinase 9
  • EC 2.7.11
  • EC
  • EC
  • serine/threonine protein kinase PITALRE
  • Serine/threonine-protein kinase PITALRE
  • TAK


CDK9 (PITALRE) (also known as cyclin-dependent kinase 9, Serine/threonine-protein kinase PITALRE, C-2K and Cell division cycle 2-like protein kinase 4) 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. CDK9 (PITALRE) interacts with a conserved domain in the TRAF-C region of the tumor necrosis factor signal transducer TRAF2. This kinase also 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. Tat stimulates human HIV-1 viral transcription elongation. This suggests that cyclin T1/cdk9(PITALRE) is one of the HIV-1 required host cellular cofactors generated during T cell activation. Cyclin T1/cdk9(PITALRE) is shown to interact with Tat to restore Tat activation in HeLa nuclear extracts depleted of P-TEFb. The cdk9(PITALRE) activity and cyclin T1 are essential for activation of transcription when tethered to the heterologous Rev response element RNA via the regulator of expression of virion Rev. CDK9 (PITALRE) is a ubiquitously expressed nuclear protein.


This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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Gene Symbol CDK9