TW-37 is a Bcl-2 protein family inhibitor with a Ki of 0.29 μM. TW-37 binds to the BH3 binding groove in Bcl-2 protein competing with BH3 peptides derived from Bid, Bim, and Bad proteins. TW-37 binds to Bcl-2 with a Ki value of 290 nM and also to Bcl-xL and Mcl-1 with high affinities. TW-37 potently inhibits cell growth in PC-3 prostate cancer cells with an IC50 value of 200 nM and effectively induces apoptosis in a dose-dependent manner. TW-37 has an IC50 of 1.1 μM for primary human endothelial cells and averaged 0.3 μM for head and neck cancer cells (OSCC3, UM-SCC-1, and UMSCC-74A).
Molecular Weight | 573.7 |
Formula | C33H35NO6S |
CAS Number | 877877-35-5 |
Solubility (25°C) | DMSO: ≥ 100 mg/mL |
Storage |
Powder -20°C 3 years ; 4°C 2 years In solvent -80°C 6 months ; -20°C 1 month |
Species | Mouse | Rat | Rabbit | Guinea pig | Hamster | Dog |
Weight (kg) | 0.02 | 0.15 | 1.8 | 0.4 | 0.08 | 10 |
Body Surface Area (m2) | 0.007 | 0.025 | 0.15 | 0.05 | 0.02 | 0.5 |
Km factor | 3 | 6 | 12 | 8 | 5 | 20 |
Animal A (mg/kg) = Animal B (mg/kg) multiplied by | Animal B Km |
Animal A Km |
For example, to modify the dose of Compound A used for a mouse (20 mg/kg) to a dose based on the BSA for a rat, multiply 20 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for Compound A of 10 mg/kg.
Related Bcl-2 Products |
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BAD (103-127) (human)
BAD (103-127) (human), the 25-mer Bad peptide, is derived from the BH3 domain of BAD, can antagonize the function of Bcl-xL. |
Bim BH3, Peptide IV
Bim BH3, Peptide IV is a 26-residue peptide from BH3-only protein Bim, which belongs to the pro-apoptotic group of the Bcl-2 family of proteins. |
Bax inhibitor peptide, negative control
Bax inhibitor peptide, negative control is a inhibitor of Bax. |
Bad BH3 (mouse)
Bad BH3 (mouse) is a biological active peptide. |
Bid BH3 (80-99)
Bid BH3 (80-99) is a biological active peptide. |
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