Pseudodipeptide Inhibitors of Protein Farnesyltransferase
摘要:
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.
Hafnium-Catalyzed Direct Amide Formation at Room Temperature
作者:Helena Lundberg、Hans Adolfsson
DOI:10.1021/acscatal.5b00385
日期:2015.6.5
[Hf(Cp)2Cl2], as catalyst. Amino acids are transformed into their corresponding amides without racemization, and the catalyst displays full selectivity for the amidation of carboxylic acids overesters. Electronic properties of the carboxylic acids were found to have a strong influence on the rate of the amidation reaction, and the need for a balanced amount of molecularsieves was observed to be
Pseudodipeptide Inhibitors of Protein Farnesyltransferase
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.