期刊
BIOCHEMICAL JOURNAL
卷 419, 期 -, 页码 185-192出版社
PORTLAND PRESS LTD
DOI: 10.1042/BJ20081212
关键词
cell death; lipid rafts; palmitoylation; signal transduction; tumour necrosis factor receptor (TNFR)
资金
- CNRS (Centre National de la Recherche Scientifique)
- LNCC (Ligue Nationale Contre Le Cancer)
- INCA (Institut National du Cancer)
- ANR (Agence Nationale de la Recherche)
- ARC (Association pour la Recherche sur le Cancer)
S-palmitoylation is it lipid modification that regulates membrane-protein association and influences protein trafficking, stability or aggregation, thus playing an important role in protein signalling. We previously demonstrated that the palmitoylation of Fas, one of the DD (death domain)-containing members of the TNFR [TNF (tumour necrosis factor) receptor] superfamily, is essential for the redistribution of this receptor into lipid rafts,an obligatory step for the death signal transmission. Here we investigate the requirement of protein palmitoylation in the activities of other DD-containing death receptors. We show that DR4 is palmitoylated, whereas DR5 and TNFR1 are not. Furthermore, DR4 palmitoylation is required for its raft localization and its ability to oligomerize, two essential features in TRAIL (TNF-related apoptosis-inducing ligand)-induced death signal transmission.
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