title: Different amino acid replacements in CAAX-tetrapeptide based peptidomimetic farnesyltransferase inhibitors.
abstract: In a series of CAAX-tetrapeptide based farnesyltransferase inhibitors it has been shown that the central AA-dipeptide can be replaced by tranexamic acid, 4-aminobenzenesulfonic acid, and 3-amino-N-(2,3-dimethylphenyl)benzenesulfonamide, respectively, yielding inhibitors active in the low micromolar range. Lipophilic derivatives of these compounds showed moderate anti-proliferative activity against different tumor cell lines. A promising class of peptidomimetic farnesyltransferase inhibitors was discovered through the replacement of the terminal AAX motif of the CAAX-tetrapeptide by 2-acylamino-5-aminobenzophenones.
mesh_terms: D019883:Alkyl and Aryl Transferases / Q000037:antagonists & inhibitors*; D004791:Enzyme Inhibitors / Q000138:chemical synthesis* / Q000494:pharmacology; D051231:Farnesyltranstransferase; D009842:Oligopeptides; D013329:Structure-Activity Relationship