Farnesyl Thiosalicylic Acid

Association of Ras protein with the inner surface of the plasma membrane is required for Ras signaling activity. Farnesyl thiosalicylic acid (FTS) is an inhibitor of Ras-mediated signaling that functions by dislodging Ras from the cell membrane thereby rendering it susceptible to proteolytic degradation. FTS inhibits the growth of human Ha-ras-transformed Rat1 fibroblasts with an IC50 value of 7.5 µM. It does not inhibit Ras farnesylation in vitro and although FTS does inhibit prenylated protein methyltransferase (PPMTase) in cell-free systems with a Ki value of 2.6 µM, it is relatively ineffective at inhibiting methylation in whole cells. Treatment of chow-fed ApoE-deficient mice with 5 mg/kg FTS three times per week for six weeks reduces early atherosclerotic lesion development by 52% compared to controls.Formal Name: 2-[[(2E,6E)-3,7,11-trimethyl-2,6,10-dodecatrien-1-yl]thio]-benzoic acid. CAS Number: 162520-00-5. Synonyms: FTS, Salirasib. Molecular Formula: C22H30O2S. Formula Weight: 358.5. Purity: >96%. Formulation: (Request formulation change), A crystalline solid. Solubility: DMF: 30 mg/ml, DMSO: 20 mg/ml, Ethanol: 30 mg/ml, Ethanol:PBS (pH 7.2) (1:1): 0.5 mg/ml. lambdamax: 263, 321 nm. SMILES: C/C(=C\CSc1ccccc1C(=O)O)/CC/C=C(\C)/CCC=C(C)C. InChi Code: InChI=1S/C22H30O2S/c1-17(2)9-7-10-18(3)11-8-12-19(4)15-16-25-21-14-6-5-13-20(21)22(23)24/h5-6,9,11,13-15H,7-8,10,12,16H2,1-4H3,(H,23,24)/b18-11+,19-15+. InChi Key: WUILNKCFCLNXOK-CFBAGHHKSA-N.