PeptideDB

YKL-5-124 TFA 2748220-93-9

YKL-5-124 TFA 2748220-93-9

CAS No.: 2748220-93-9

YKL-5-124 TFA is a specific and irreversible covalent inhibitor of CDK7 with IC50 of 53.5 nM and 9.7 nM for CDK7 and CDK
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YKL-5-124 TFA is a specific and irreversible covalent inhibitor of CDK7 with IC50 of 53.5 nM and 9.7 nM for CDK7 and CDK7/Mat1/CycH, respectively. YKL-5-124 TFA is more than 100-fold selective for CDK7 over CDK9 and CDK2 and has no activity against CDK12 and CDK13. YKL-5-124 TFA induces strong cell cycle arrest and inhibits E2F-driven gene expression with little effect on RNA polymerase II phosphorylation status.

Physicochemical Properties


Molecular Formula C30H34F3N7O5
Molecular Weight 629.630076885223
Exact Mass 629.257
CAS # 2748220-93-9
Related CAS # YKL-5-124;1957203-01-8
PubChem CID 146025947
Appearance White to off-white solid powder
Hydrogen Bond Donor Count 5
Hydrogen Bond Acceptor Count 10
Rotatable Bond Count 8
Heavy Atom Count 45
Complexity 948
Defined Atom Stereocenter Count 1
SMILES

C(F)(F)(F)C(=O)O.N(C1=NNC2C(C)(C)N(C(=O)N[C@@H](C3C=CC=CC=3)CN(C)C)CC1=2)C(C1C=CC(NC(=O)C=C)=CC=1)=O

InChi Key CPYGDECNKKKQGE-VZYDHVRKSA-N
InChi Code

InChI=1S/C28H33N7O3.C2HF3O2/c1-6-23(36)29-20-14-12-19(13-15-20)26(37)31-25-21-16-35(28(2,3)24(21)32-33-25)27(38)30-22(17-34(4)5)18-10-8-7-9-11-18;3-2(4,5)1(6)7/h6-15,22H,1,16-17H2,2-5H3,(H,29,36)(H,30,38)(H2,31,32,33,37);(H,6,7)/t22-;/m1./s1
Chemical Name

N-[(1S)-2-(dimethylamino)-1-phenylethyl]-6,6-dimethyl-3-[[4-(prop-2-enoylamino)benzoyl]amino]-1,4-dihydropyrrolo[3,4-c]pyrazole-5-carboxamide;2,2,2-trifluoroacetic acid
HS Tariff Code 2934.99.9001
Storage

Powder-20°C 3 years

4°C 2 years

In solvent -80°C 6 months

-20°C 1 month

Note: Please store this product in a sealed and protected environment, avoid exposure to moisture.
Shipping Condition Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)

Biological Activity


Targets CDK7 53.5 nM (IC50) CDK7/Mat1/CycH 9.7 nM (IC50) CDK2 1300 nM (IC50) CDK9 3020 nM (IC50)
ln Vitro G1- and G2/M-phase cell numbers rise while S-phase cell numbers decrease in a dose-dependent manner in response to YKL-5-124 (0-2000 nM; 72 hours; HAP1 cells) treatment[1]. ?In a concentration-dependent manner, YKL-5-124 (0-2000 nM; 24 hours; HAP1 WT cells) treatment suppresses the phosphorylation of CDK1 T-loop and, to a lesser extent, CDK2 T-loop[1]. ?The pull-down of CDK7-cyclin H is blocked when cells treated with YKL -5-124 as a competitor at a concentration of roughly 30 nM, but it has no effect on the pull-down of cyclin K-CDK12/13 in HAP1 cells. CDK7-cyclin H binding to bioTHZ1 is reduced by >50% after 30 minutes of treatment with 100 nM YKL-5 -124[1].
Cell Assay Cell Cycle Analysis[1]
Cell Types: HAP1 cells
Tested Concentrations: 0 nM, 0.2 nM, 0.7 nM, 2 nM, 6.3 nM, 20 nM, 60 nM, 200 nM, 633.3 nM, 2000 nM
Incubation Duration: 72 hrs (hours)
Experimental Results: Caused a dose-dependent increase in G1- and G2/M-phase cells and a corresponding loss of S-phase cells.

Western Blot Analysis[1]
Cell Types: HAP1 WT cells
Tested Concentrations: 0 nM, 125 nM, 250 nM, 500 nM, 1000 nM, 2000 nM
Incubation Duration: 24 hrs (hours)
Experimental Results: Inhibited CDK1 T-loop phosphorylation, and to a lesser extent CDK2 T-loop phosphorylation in a concentration-dependent fashion.
References

[1]. Development of a Selective CDK7 Covalent Inhibitor Reveals Predominant Cell-Cycle Phenotype. Cell Chem Biol. 2019 Jun 20;26(6):792-803.e10.


Solubility Data


Solubility (In Vitro) DMSO: ≥ 100 mg/mL (158.82 mM)
H2O: 50 mg/mL (79.41 mM)
Solubility (In Vivo) Solubility in Formulation 1: ≥ 2.5 mg/mL (3.97 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

Solubility in Formulation 2: ≥ 2.5 mg/mL (3.97 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.

Solubility in Formulation 3: ≥ 2.5 mg/mL (3.97 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.

Solubility in Formulation 4: 50 mg/mL (79.41 mM) in PBS (add these co-solvents sequentially from left to right, and one by one), clear solution; with ultrasonication.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 1.5882 mL 7.9412 mL 15.8823 mL
5 mM 0.3176 mL 1.5882 mL 3.1765 mL
10 mM 0.1588 mL 0.7941 mL 1.5882 mL
*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.