NSC-697923 #10473
Product Information
Product Usage Information
NSC-697923 is supplied as a lyophilized powder. For a 10 mM stock, reconstitute 1 mg of powder in 0.37 mL of DMSO. Working concentrations and length of treatment can vary depending on the desired effect.
Storage
Store lyophilized at -20ºC, desiccated. In lyophilized form, the chemical is stable for 24 months. Once in solution, store at -20ºC and use within 1 month to prevent loss of potency. Aliquot to avoid multiple freeze/thaw cycles.
Product Description
Molecular Weight | 267.3 g/mol |
Purity | >98% |
Molecular Formula | C11H9NO5S |
CAS | 343351-67-7 |
Solubility | Soluble in DMSO at 25 mg/mL or ethanol at 5 mg/mL. |
Background
NSC-697923 is a small-molecule inhibitor of the E2 ubiquitin-conjugating enzyme Ubc13-Uev1A. NSC-697923 blocked formation of Ubc13 and ubiquitin thioester conjugates, and suppressed constitutive NF-κB activity in diffuse large B cell lymphoma cells. Inhibition of ubiquitin-dependent DNA damage signaling was observed, but not formation of the phosphorylated form of histone variant H2AX, which is consistent with NSC-697923 targeting of nuclear Ubc13 (1). Additional data suggested that NSC-697923 interacted with the Ubc13 active site cysteine (2). UBE2N (Ubc13) is an E2 ubiquitin-conjugating enzyme that catalyzes K63-linked poly-Ub chain formation. UBE2N forms a heterodimer with MMS2 or Uev1A to exert its E2 ligase function (3). NSC-697923 treatment of neuroblastoma cells increased apoptosis and nuclear p53 accumulation, and enhanced tumor suppression (4). NSC-697923 also inhibited caspase-1 enzymatic activity (IC50 = 1.737 μM) and NLRP3 protein expression by suppressing the NF-κB signaling pathway. NSC-697923 inhibited joint swelling and NLRP3 inflammasome activation in an animal model of gouty arthritis (5).
限制使用
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For Research Use Only. Not For Use In Diagnostic Procedures.
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