CDK9 inhibitor
CDK9 inhibitor is a small-molecule selective inhibitor of CDK9 (cyclin dependent kinase 9) with IC50 value of 39 nM [1].
CDKs are a group of serine/threonine kinases and are widely spread in all known eukaryotes. CDKs are activated through binding to cyclins and forming heterodimers. In the dimer, CDK acts as a catalytic subunit and phosphorylates the down-stream proteins such as nuclear lamina protein, nucleolin and histone H1. Through this way, CDKs take participate in the cell cycle regulation. CDK9 is a special member of the CDK family. It can affect the elongation phase of transcription through phosphorylating RNA polymerase II. The partner of it is positive elongation factor b (P-TEFb). It is reported that CDK9 is necessary for the infection of many kinds of viruses such as HIV-1 and HSV1 [1].
CDK9 inhibitor is a 4-aminophenyl derivative based on the (6-phenyl-pyrimidin-4-yl)-phenylamine structure. It showed elevated selectivity against CDK9 than the previous found inhibitors. The IC50 values of CDK9 inhibitor for CDK1/CycB, CDK2/CycE, CDK3/CycE, CDK4/CycD1, CDK5/p35, CDK6/CycD1 and CDK7/CycH are all higher than 1 μM. CDK9 inhibitor has no cytotoxicity. The treatment of CDK9 inhibitor at concentrations of 1 μM and 2 μM resulted in the cell viabilities of 101% and 115%, respectively. It also showed no significant toxicity in H9 cells. In the p24 assay, CDK9 inhibitor exerted its potency in inhibiting HIV-1 propagation with about 10% reduction of p24 production [1].
References:
1.Németh G, Varga Z, Greff Z, et al. Novel, selective CDK9 inhibitors for the treatment of HIV infection. Curr Med Chem, 2011;18(3):342-58.
- 1. Geisler S, J?ger L, et al. "Ubiquitin-specific protease USP36 knockdown impairs Parkin-dependent mitophagy via downregulation of Beclin-1-associated autophagy-related ATG14L." Exp Cell Res. 2019 Sep 21:111641. PMID:31550441
- 2. Yuan J, Jiang YY, et al. "Super-Enhancers Promote Transcriptional Dysregulation in Nasopharyngeal Carcinoma." Cancer Res. 2017 Dec 1;77(23):6614-6626. PMID:28951465
| Storage | Store at -20°C |
| M.Wt | 499.54 |
| Cas No. | 1415559-43-1 |
| Formula | C26H21N5O4S |
| Solubility | Soluble in DMSO |
| Chemical Name | N-[5-[[6-[3-(1,3-dioxoisoindol-2-yl)phenyl]pyrimidin-4-yl]amino]-2-methylphenyl]methanesulfonamide |
| SDF | Download SDF |
| Canonical SMILES | CC1=C(C=C(C=C1)NC2=NC=NC(=C2)C3=CC(=CC=C3)N4C(=O)C5=CC=CC=C5C4=O)NS(=O)(=O)C |
| Shipping Condition | Small Molecules with Blue Ice, Modified Nucleotides with Dry Ice. |
| General tips | We do not recommend long-term storage for the solution, please use it up soon. |
| Cell experiment [1]: | |
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Cell lines |
MT4 cells |
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Preparation method |
This compound is soluble in DMSO. General tips for obtaining a higher concentration: Please warm the tube at 37 °C for 10 minutes and/or shake it in the ultrasonic bath for a while. Stock solution can be stored below - 20 °C for several months. |
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Reacting condition |
2.5 μM; 1 week |
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Applications |
In HIV-1 infected MT4 cells, CDK9 Inhibitor at 2.5 μM potently inhibited HIV-1 propagation due to positive elongation factor b (P-TEFb) inhibition. Moreover, in MT4 cells, CDK9 Inhibitor at the concentrations of 1 μM and 2 μM resulted in the cell viabilities of 101% and 115%, respectively, which implied CDK9 Inhibitor had no cytotoxicity. In the p24 assay, CDK9 Inhibitor down-regulated the expression of p24 protein by 10%. |
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References: [1]. Németh G, Varga Z, Greff Z, et al. Novel, selective CDK9 inhibitors for the treatment of HIV infection. Curr Med Chem, 2011;18(3):342-58. |
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Quality Control & MSDS
- View current batch:
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Purity = 98.00%
- COA (Certificate Of Analysis)
- MSDS (Material Safety Data Sheet)
- Datasheet
Chemical structure
Related Biological Data
