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Palmitoylated proteins have been implicated in several disease states including Huntington's, cardiovascular, T-cell mediated immune diseases, and cancer. To proceed with drug discovery efforts in this area, it is necessary to: identify the target enzymes, establish efficient assays for...
Many proteins with pivotal roles in T cell activation are modified by fatty acylation. Examples of these include transmembrane proteins such as the co-receptors CD4 and CD8, the adaptors LAT and Cbp/PAG, the pre-TCR as well as proteins synthesized on free cytosolic ribosomes, such as the...
The attachment of palmitic acid to the amino acid cysteine via thioester linkage (S-palmitoylation) is a common post-translational modification of eukaryotic proteins. In this review, we discuss the role of palmitoylation as a versatile protein sorting signal, regulating protein trafficking...
The efficacy and success of many cellular processes is dependent on a tight orchestration of proteins trafficking to and from their site(s) of action in a time-controlled fashion. Recently, a dynamic cycle of palmitoylation/de-palmitoylation has been shown to regulate shuttling of several...
Membrane resident proteins are a common feature of biology yet many of these proteins are not integral to the membrane. These peripheral membrane proteins are often bound to the membrane by the addition of fatty acyl chains to the protein. This modification, known as S-acylation or...
Many proteins are S-acylated, affecting their localization and function. Dynamic S-acylation in response to various stimuli has been seen for several proteins in vivo . The regulation of S-acylation is beginning to be elucidated. Proteins can autoacylate or be S-acylated by protein acyl...
Ras proteins have become paradigms for isoform- and compartment-specific signaling. Recent work has shown that Ras isoforms are differentially distributed within cell surface signaling nanoclusters and on endomembranous compartments. The critical feature regulating Ras protein localization and...
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