The transgene contains the CAG promoter (CMV-IE enhancer, chicken beta-actin promoter, rabbit beta-globin genomic DNA), human Ras gene cDNA, human Raf gene cDNA, Aequora jellyfish green fluorescence protein gene cDNA to facilitate intramolecular binding of GTP-Ras to Raf Ras binding domain bringing the CFP close to YFP for fluorescent resonance energy transfer between fluorophores. (J:104881)