نتایج جستجو برای: prenylation
تعداد نتایج: 805 فیلتر نتایج به سال:
Farnesyl transferase inhibitors (FTIs) have so far proved to have limited value as single agents in clinical trials. This PharmSight will focus on the use of a novel group of FTIs that are most effective in vitro when used in combination with the "statin" class of anti-hypercholesterolemic agents, which also block protein prenylation. We recently showed that these novel FTIs in combination with...
A direct thionation procedure allows conversion of allylic alcohols into the corresponding thiols, the products of which are immediately compatible with one-pot site-selective selenenyl sulfide mediated protein conjugation.
Choroideremia (CHM) is an X-linked degeneration of the retinal pigment epithelium (RPE), photoreceptors, and choroid, caused by loss of function of the CHM/REP1 gene. REP1 is involved in lipid modification (prenylation) of Rab GTPases, key regulators of intracellular vesicular transport and organelle dynamics. To study the pathogenesis of CHM and to develop a model for assessing gene therapy, w...
OBJECTIVES To investigate the mode of action of monastrol in intracellular Leishmania. METHODS Microarray experiments were conducted on an Affymetrix GeneChip(®) Human Genome U133 Plus 2.0 Array, to determine the genes that encode proteins related to pathological alterations of cell signalling pathways in intracellular Leishmania amastigotes in response to monastrol treatment. RESULTS Monas...
Mammalian geranylgeranyltransferase type II (GGTase-II) is a 100-kDa heterodimer that catalyzes the transfer of two 20-carbon geranylgeranyl groups from geranylgeranyl pyrophosphate onto C-terminal cysteine residues of Rab GTPases. This modification is essential for the biological activity of Rab proteins. Geranylgeranylation can be performed in vitro using recombinant GGTase-II but so far larg...
The association of mutant forms of Ras protein with a variety of human cancers has stimulated intense interest in therapies based on inhibiting oncogenic Ras signaling. Attachment of Ras proteins to the plasma membrane is required for effective Ras signaling and is initiated by the enzyme farnesyl protein transferase. We found that in the presence of potent farnesyl protein transferase inhibito...
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