作者:S. Jane deSolms、Albert A. Deana、Elizabeth A. Giuliani、Samuel L. Graham、Nancy E. Kohl、Scott D. Mosser、Allen I. Oliff、David L. Pompliano、Elaine Rands
DOI:10.1021/jm00020a010
日期:1995.9
A series of pseudodipeptide amides are described that inhibit Ras protein farnesyltransferase (PFTase). These inhibitors are truncated versions of the C-terminal tetrapeptide (CAAX motif) of Ras that serves as the signal sequence for PFTase-catalyzed protein farnesylation. In contrast to CAAX peptidomimetics previously reported, these inhibitors do not have a C-terminal carboxyl moiety, yet they inhibit farnesylation in vitro at <100 nM. Despite the absence of the X residue in the CAAX motif, which normally directs prenylation specificity, these pseudodipeptides are greater than 100-fold selective for PFTase over type 1 protein geranylgeranyltransferase.