A cell-permeable, sulfoximine based compound that acts a potent, fast acting, irreversible inhibitor of g-glutamylcysteine synthetase and depletes cellular glutathione levels. Closely resembles the structure of g-glutamylphosphate cysteine adduct. The inhibition follows the first order kinetics with t1/2 = ~11 sec at saturating inhibitor concentration. Does not affect the activity of glutamine synthetase. Shown to improve the outcome of chemotherapy by lowering the levels of glutathione in cancer cells (IC50 = 1.9, 8.6, and 29uM in melanoma, breast, and ovarian tumor cells, respectively). CAS Number: 83730-53-4 Molecular Formula: C8H18N2O3S Solubility: H2O Primary Target: gamma-glutamylcysteine synthetase Storage and Stability: May be stored at 4C. For long-term storage, aliquot and store at 4C. Do not freeze. For maximum recovery of product, centrifuge the original vial prior to removing the cap. Further dilutions can be made in assay buffer.
Molecular Weight:
222.31
Purity:
~97% (TLC)
Form:
Supplied as a white powder.
CAS Number:
[83730-53-4]
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