MRN-ATM Pathway Inhibitor, Mirin-CAS 299953-00-7-Calbiochem

C₁₀H₈N₂O₂S

220.25

MFCD05885480

A cell-permeable pyrimidinone compound that inhibits the exonuclease activity of Mre11, component of the MRN (Mre11-Rad50-Nbs1) complex, and prevents MRN-mediated activation of dimeric ATM (IC₅₀ = 12 µM) in cell-free p53 Ser15 phosphorylation assays, while exhibiting little effect against MRN-independent ATM activation in the presence of high DSBs (DNA double strain breaks) or the activity of activated monomeric ATM. Mirin is shown to cause an increase of G2 population in exponentially growing TOSA4 cultures (~1.6-fold at 50 µM) and dramatically increase mitotic cell polulation (~10-fold at 25 µM) after irradiation of G2 phase U2OS cultures by preventing IR-induced G2/M checkpoint. Mirin exhibits no inhibitory activity against Rad50-associated adenylate kinase or Exonulease III.
A cell-permeable pyrimidinone compound that inhibits the exonuclease activity of Mre11, component of the MRN (Mre11-Rad50-Nbs1) complex, and prevents MRN-mediated activation of dimeric ATM (IC₅₀ = 12 µM) in cell-free p53 Ser15 phosphorylation assays, while exhibiting little effect against MRN-independent ATM activation in the presence of high DSBs (DNA double strain breaks) or the activity of activated monomeric ATM. Mirin is shown to cause an increase of G2 population in exponentially growing TOSA4 cultures (~1.6-fold at 50 µM) and dramatically increase mitotic cell polulation (~10-fold at 25 µM) after irradiation of G2 phase U2OS cultures by preventing IR-induced G2/M checkpoint. Mirin exhibits no inhibitory activity against Rad50-associated adenylate kinase or Exonulease III.

Toxicity: Standard Handling (A)

Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 3 months at -20&degC.

Garner, K.M., et al. 2009. Nature Chem. Biol.5, 129.
Peterson, S., et al. 2009. Nature Chem. Biol.5, 130.
Dupre, A., et al. 2008. Nature Chem. Biol.4, 119.

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

100

≥95% (HPLC)

powder

Calbiochem^®

OK to freeze
protect from light

red-orange

DMSO: 10 mg/mL
ethanol: 3 mg/mL

ambient

2-8℃

10 mg in Plastic ampoule
Packaged under inert gas

11 - Combustible Solids

WGK 3