2. Signaling Pathways
  3. Cell Cycle/DNA Damage
  4. CDK
  5. CDK9 Isoform

CDK9

Cyclin-dependent kinase 9 (CDK9) is a cyclin-dependent kinase associated with P-TEFb.The protein encoded by this gene is a member of the cyclin-dependent 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.

CDK9 Related Products (106):

Cat. No. Product Name Effect Purity
  • HY-16297A
    Abemaciclib
    		Inhibitor 99.96%
    Abemaciclib (LY2835219) is a selective CDK4/6 inhibitor with IC50 values of 2 nM and 10 nM for CDK4 and CDK6, respectively.
  • HY-10492
    Dinaciclib
    		Inhibitor 99.44%
    Dinaciclib (SCH 727965) is a potent inhibitor of CDK, with IC50s of 1 nM, 1 nM, 3 nM, and 4 nM for CDK2, CDK5, CDK1, and CDK9, respectively.
  • HY-16297
    Abemaciclib methanesulfonate
    		Inhibitor 99.95%
    Abemaciclib methanesulfonate (LY2835219 methanesulfonate) is a selective CDK4/6 inhibitor with IC50s of 2 nM and 10 nM for CDK4 and CDK6, respectively.
  • HY-112088
    AZD4573
    		Inhibitor 99.97%
    AZD4573 is a potent and highly selective CDK9 inhibitor (IC50 of <4 nM) that enables transient target engagement for the treatment of hematologic malignancies.
  • HY-103618
    THZ531
    		Inhibitor 99.86%
    THZ531 is a selective and covalent inhibitor of both CDK12 and CDK13 with IC50s of 158 nM and 69 nM, respectively.
  • HY-162037
    CDDD11-8
    		Inhibitor 98.74%
    CDDD11-8 is an orally active, potent and selective inhibitor of CDK9 and FLT3-ITD, with Ki values of 8 and 13 nM, respectively. CDDD11-8 reduces the proliferation of leukemia cell lines and was particularly effective against those harboring FLT3-ITD mutation.
  • HY-137478
    KB-0742
    		Inhibitor
    KB-0742 is a potent, selective and orally active CDK9 inhibitor with an IC50 of 6 nM for CDK9/cyclin T1. KB-0742 is selective for CDK9/cyclin T1 with >50-fold selectivity over other CDK kinases. KB-0742 has potent anti-tumor activity.
  • HY-156795
    PROTAC CDK9/CycT1 Degrader-2
    		Inhibitor
    PROTAC CDK9/CycT1 Degrader-2 is a inhibitor of CDK9, with the IC50 of 45 nM.
  • HY-138293
    SY-5609
    		Inhibitor 99.66%
    SY-5609 (CDK7-IN-3) is an orally active, highly selective, noncovalent CDK7 inhibitor with a KD of 0.065 nM. SY-5609 shows poor inhibition on CDK2 (Ki=2600 nM), CDK9 (Ki=960 nM), CDK12 (Ki=870 nM). SY-5609 induces apoptosis in tumor cells and has antitumor activity.
  • HY-10008
    SNS-032
    		Inhibitor 99.51%
    SNS-032 (BMS-387032) is a potent and selective inhibitor of CDK2, CDK7, and CDK9 with IC50s of 38 nM, 62 nM and 4 nM, respectively. SNS-032 has antitumor effect.
  • HY-103248
    Toyocamycin
    		Inhibitor 99.90%
    Toyocamycin (Vengicide) is an adenosine analog produced by Streptomyces diastatochromogenes, acts as an XBP1 inhibitor. Toyocamycin blocks RNA synthesis and ribosome function, and induces apoptosis. Toyocamycin affects IRE1α-XBP1 pathway, and inhibits XBP1 mRNA cleavage with an IC50 value of 80 nM with affecting IRE1α auto-phosphorylation. Toyocamycin specifically inhibits CDK9 with an IC50 value of 79 nM.
  • HY-12214A
    NVP-2
    		Inhibitor 99.20%
    NVP-2 is a potent and selective ATP-competitive cyclin dependent kinase 9 (CDK9) probe, inhibits CDK9/CycT activity with an IC50 of 0.514 nM. NVP-2 displays inhibitory effcts on CDK1/CycB, CDK2/CycA and CDK16/CycY kinases with IC50 values of 0.584 µM, 0.706 µM, and 0.605 µM, respectively. NVP-2 induces cell apoptosis.
  • HY-50940
    AT7519
    		Inhibitor 99.76%
    AT7519 (AT7519M) as a potent inhibitor of CDKs, with IC50s of 210, 47, 100, 13, 170, and <10 nM for CDK1, CDK2, CDK4 to CDK6, and CDK9, respectively.
  • HY-101212
    Fadraciclib
    		Inhibitor 99.78%
    Fadraciclib (CYC065) is a second-generation, orally available ATP-competitive inhibitor of CDK2/CDK9 kinases with IC50s of 5 and 26 nM, respectively.
  • HY-137478A
    KB-0742 dihydrochloride
    		Inhibitor 99.24%
    KB-0742 dihydrochloride is a potent, selective and orally active CDK9 inhibitor with an IC50 of 6 nM for CDK9/cyclin T1. KB-0742 dihydrochloride is selective for CDK9/cyclin T1 with >50-fold selectivity over other CDK kinases. KB-0742 dihydrochloride has potent anti-tumor activity.
  • HY-10012
    AZD-5438
    		Inhibitor 99.85%
    AZD-5438 is a potent CDK1, CDK2, and CDK9 inhibitor, with IC50s of 16 nM, 6 nM, and 20 nM in cell-free assays, respectively. AZD-5438 shows less inhibition activity against GSK3β, CDK5 and CDK6 .
  • HY-103019
    Enitociclib
    		Inhibitor 99.66%
    Enitociclib ((+)-Enitociclib) is an enanthiomer of BAY-1251152 with rotation (+). Enitociclib is a potent and selective CDK9 inhibitor with an IC50 of 3 nM. Enitociclib has anti-tumour activity.
  • HY-103712A
    Samuraciclib hydrochloride
    		Inhibitor 99.98%
    Samuraciclib hydrochloride (CT7001 hydrochloride) is a potent, selective, ATP-competitive and orally active CDK7 inhibitor, with an IC50 of 41 nM. Samuraciclib hydrochloride displays 45-, 15-, 230- and 30-fold selectivity over CDK1, CDK2 (IC50 of 578 nM), CDK5 and CDK9, respectively. Samuraciclib hydrochloride inhibits the growth of breast cancer cell lines with GI50 values between 0.2-0.3 µM. Samuraciclib hydrochloride has anti-tumor effects.
  • HY-130665
    TL12-186
    		Inhibitor 99.63%
    TL12-186 is a Cereblon-dependent multi-kinase PROTAC degrader. Multi-kinases include CDK, BTK, FLT3, Aurora kinases, TEC, ULK, ITK, et al. TL12-186 inhibits CDK2/cyclin A (IC50=73 nM) and CDK9/cyclin T1 (IC50=55 nM).
  • HY-111388A
    SEL120-34A monohydrochloride
    		Inhibitor 98.69%
    SEL120-34A monohydrochloride is an ATP-competitive and selective CDK8 inhibitor, inhibits kinase activities of CDK8/CycC and CDK19/CycC complexes with IC50s of 4.4 nM and 10.4 nM, respectively, with a Kd of 3 nM for CDK8. SEL120-34A monohydrochloride weakly inhibits CDK9 (calculated IC50=1070 nM), but shows no obvious activity against CDK1, 2, 4, 6, 5, 7. SEL120-34A monohydrochloride inhibits phosphorylation of STAT1 S727 and STAT5 S726. Has anti-tumor activity.
Cat. No. Product Name / Synonyms Application Reactivity