竞争性PPMTase抑制剂。Ras抑制剂。;Competitve PPMTase inhibitor. Ras inhibitor.;Salirasib是一种有效的竞争性prenylated protein methyltransferase (PPMTase)抑制剂, Ki为2.6 μM,其抑制Ras甲基化。Phase 2。;Salirasib is a potent competitive prenylated protein methyltransferase (PPMTase) inhibitor with Ki of 2.6 μM, which inhibits Ras methylation. Phase 2.