• 产品描述： MRTX1133 is a noncovalent, potent, and selective KRAS G12D inhibitor. MRTX1133 optimally fills the switch II pocket and extends three substituents to favorably interact with the protein, resulting in an estimated KD against KRAS G12D of 0.2 pM. MRTX1133 prevents SOS1-catalyzed nucleotide exchange and/or formation of the KRAS G12D/GTP/RAF1 complex, thereby inhibiting mutant KRAS-dependent signal transduction. MRTX1133 selectively inhibits KRAS G12D mutant, but not KRAS wild-type, tumor cells. MRTX1133 has single digit nanomolar activity in cellular assays and marked in vivo efficacy in tumor models harboring KRAS G12D mutations

• 靶点： KRas G12D:0.2 pM (Kd);Ras

• 体外研究：
  MRTX1133 inhibits ERK phosphorylation in the AGS cell line with an IC50 ranging 1-10 nM (AsPC-1, Panc 04.03, Panc 02.03, SW1990, GP2D, Suit2, A427, SNU1033, and HPAC cells). In a 2D viability assay, the IC50 of MRTX1133 is 6 nM against AGS cells (KRAS G12D), while demonstrating more than 500-fold selectivity against MKN1, a cell line which is dependent on KRAS for its growth and survival due to the amplification of wild-type KRAS.

• 体内研究：
  MRTX1133 displays efficacious in a KRAS G12D mutant xenograft mouse tumor model. Animal Model: 6-8-weekold, female, athymic nude-Foxn1nu mice (Panc 04.03 model) Dosage: 3, 10, or 30 mg/kg Administration: Intraperitoneal; twice a day for 28 days Result: An antitumor efficacy study in this model resulted in MRTX1133 dose-dependent antitumor activity with 94% growth inhibition observed at 3 mg/kg BID (IP) and tumor regressions of -62% and -73% observed at 10 and 30 mg/kg BID (IP), respectively.

• 参考文献：
  1. Wang X, et al. Identification of MRTX1133, a Noncovalent, Potent, and Selective KRAS G12D Inhibitor [published online ahead of print, 2021 Dec 10]. J Med Chem. 2021;10.1021/acs.jmedchem.1c01688.

• 溶解性： Soluble  in  DMSO

• 保存条件： -20℃

• 配置溶液浓度参考：
  

  	1mg	5mg	10mg
  1 mM	1.665 ml	8.324 ml	16.649 ml
  5 mM	0.333 ml	1.665 ml	3.33 ml
  10 mM	0.166 ml	0.832 ml	1.665 ml
  50 mM	0.033 ml	0.166 ml	0.333 ml

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质量 (mg) = 浓度 (mM) x 体积 (mL) x 分子摩尔量 (g/mol)

• pg ng μg mg g kg =
  fM pM nM μM mM M *
  nL μL mL L *