farnesylated residue cyclized residue isoprenylated tryptophan 3'-farnesyl-2',3'-dihydro-2',N2-cyclo-L-tryptophan 204.18780517578125 204.350006103515625 390.267120361328125 390.55999755859375 (2S,3aR,8aS)-3a-[(2E,6E)-3,7,11-trimethyldodeca-2,6,10-trien-1-yl]-1,2,3,3a,8,8a-hexahydropyrrolo[2,3-b]indole-2-carboxylic acid A protein modification that effectively converts an L-tryptophan residue to 3'-farnesyl-2',3'-dihydro-2',N2-cyclo-L-tryptophan. natural W MOD:01590 C 15 H 24 LIPID 3'-farnesyl-2',N2-cyclotryptophan C 26 H 34 N 2 O 1 3'-farnesyl-2',3'-dihydro-2',N2-cyclo-L-tryptophan PSI-MOD none