TAK-243 (MLN7243) is a potent, selective and cell permeable small molecule inhibitor of the ubiquitin activating enzyme (UAE) at nM range. The ubiquitin-activating enzymes, found more active in cancer cells than in normal healthy cells, catalyze the first step in ubiquitination reaction, targeting a protein for degradation via proteasome. TAK-243 treatment caused depletion of cellular ubiquitin conjugates, resulting in disruption of signaling events, induction of proteotoxic stress, and impairment of cell cycle progression and DNA damage repair pathways. TAK-243 treatment caused death of cancer cells and, in primary human xenograft studies, demonstrated antitumor activity at tolerated doses. Due to its specificity and potency, TAK-243 allows for interrogation of ubiquitin biology and for assessment of UAE inhibition as a new approach for cancer treatment. TAK-243 is now in phase I clinical trials for adult patients with advanced solid tumors.
CAS Number: 1450833-55-2
Molecular Weight: 519.52
Chemical Name: ((1R,2R,3S,4R)-2,3-dihydroxy-4-(2-(3-(trifluoromethylthio)phenyl)pyrazolo[1,5-a]pyrimidin-7-ylamino)cyclopentyl)methyl sulfamate
Appearance: Solid Power.
Purity: ≥98% (or refer to the Certificate of Analysis)
Solubility: DMSO up to 100 mM
Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis
Storage Condition: Dry, dark and -20 oC for 1 year or refer to the Certificate of Analysis.
Shelf Life: ≥12 months if stored properly.
Stock Solution Storage: 0 - 4 oC for 1 month or refer to the Certificate of Analysis.
Drug Formulation: To be determined.
HS Tariff Code: 382200
How to use
TAK-243 was suggested to be used at 1-10 µM final concentration in vitro and in cellular assays.
TAK-243 was administered intravenously at 12.5-25 mg/Kg to a panel of human-patient-derived and cell-line-derived xenograft (PDX and CDX, respectively) tumor models on a twice-per-week schedule.
- Hyer ML, et al. A small-molecule inhibitor of the ubiquitin activating enzyme for cancer treatment. (2018) Nat Med. In press.
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