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Ryouhei Tsutsumi et al.
Molecular and cellular biology, 29(2), 435-447 (2008-11-13)
The heterotrimeric G protein alpha subunit (Galpha) is targeted to the cytoplasmic face of the plasma membrane through reversible lipid palmitoylation and relays signals from G-protein-coupled receptors (GPCRs) to its effectors. By screening 23 DHHC motif (Asp-His-His-Cys) palmitoyl acyl-transferases, we
Pedro E Marques et al.
Developmental cell, 50(3), 283-295 (2019-06-25)
Scavenger receptor B1 (SR-B1), the main receptor for high-density lipoprotein (HDL), is key in preventing atherosclerosis. It removes cholesterol from HDL, returning the lipid-poor lipoprotein to the circulation. To study the mechanisms controlling SR-B1 dynamics at the plasma membrane and
James D Foster et al.
The Journal of biological chemistry, 286(7), 5175-5186 (2010-12-02)
Palmitoylation is a lipid modification that confers diverse functions to target proteins and is a contributing factor for many neuronal diseases. In this study, we demonstrate using [(3)H]palmitic acid labeling and acyl-biotinyl exchange that native and expressed dopamine transporters (DATs)
Eric Cortada et al.
Journal of cell science, 134(6) (2021-02-20)
The voltage-gated sodium channel is critical for cardiomyocyte function. It consists of a protein complex comprising a pore-forming α subunit and associated β subunits. In polarized Madin-Darby canine kidney cells, we show evidence by acyl-biotin exchange that β2 is S-acylated
Joel Berger et al.
Annual review of medicine, 53, 409-435 (2002-01-31)
The peroxisome proliferator-activated receptors (PPARs) are a group of three nuclear receptor isoforms, PPAR gamma, PPAR alpha, and PPAR delta, encoded by different genes. PPARs are ligand-regulated transcription factors that control gene expression by binding to specific response elements (PPREs)
Francisco Garcia-Oscos et al.
Biological psychiatry, 71(7), 574-582 (2011-12-27)
Although it is known that stress elevates the levels of pro-inflammatory cytokines and promotes hyper-excitable central conditions, a causal relationship between these two factors has not yet been identified. Recent studies suggest that increases in interleukin 6 (IL-6) levels are
Abiy M Mohammed et al.
Biochemical pharmacology, 85(1), 109-114 (2012-10-25)
Phagocyte-like NADPH oxidase (Nox2) has been shown to play regulatory roles in the metabolic dysfunction of the islet β-cell under the duress of glucolipotoxic conditions and exposure to proinflammatory cytokines. However, the precise mechanisms underlying Nox2 activation by these stimuli
Jing Lu et al.
American journal of physiology. Gastrointestinal and liver physiology, 294(5), G1181-G1190 (2008-03-22)
We have shown earlier that platelet-activating factor (PAF) causes apoptosis in enterocytes via a mechanism that involves Bax translocation to mitochondria, followed by caspase activation and DNA fragmentation. Herein we report that, in rat small intestinal epithelial cells (IEC-6), these
Caglar Gök et al.
Cell reports, 31(10), 107697-107697 (2020-06-11)
The transmembrane sodium-calcium (Na-Ca) exchanger 1 (NCX1) regulates cytoplasmic Ca levels by facilitating electrogenic exchange of Ca for Na. Palmitoylation, the only reversible post-translational modification known to modulate NCX1 activity, controls NCX1 inactivation. Here, we show that palmitoylation of NCX1
David W Sanders et al.
eLife, 10 (2021-04-24)
Many enveloped viruses induce multinucleated cells (syncytia), reflective of membrane fusion events caused by the same machinery that underlies viral entry. These syncytia are thought to facilitate replication and evasion of the host immune response. Here, we report that co-culture
Hiromi Oku et al.
Comparative biochemistry and physiology. Part B, Biochemistry & molecular biology, 152(4), 370-375 (2009-01-27)
To determine whether external factors affect the adipogenic function of fish adipocytes, the effects of 2-bromopalmitate (a PPAR agonist) on the fatty acid composition in differentiating adipocytes of red sea bream were investigated in vitro. In the presence of 2-bromopalmitate
Tomasz Szkudelski et al.
Life sciences, 89(13-14), 450-455 (2011-08-09)
Fatty acids are involved in the regulation of lipolysis in adipocytes; however, this regulatory action is unclear. The present study aimed to determine the short-term influence of palmitate and its non-metabolisable analogue, 2-bromopalmitate, on the lipolytic activity of adipocytes. Freshly
Aurore D Levy et al.
Molecular biology of the cell, 22(11), 1930-1942 (2011-04-08)
Protein palmitoylation is a reversible lipid modification that plays critical roles in protein sorting and targeting to specific cellular compartments. The neuronal microtubule-regulatory phosphoproteins of the stathmin family (SCG10/stathmin 2, SCLIP/stathmin 3, and RB3/stathmin 4) are peripheral proteins that fulfill
T Szkudelski et al.
Physiological research, 60(3), 521-530 (2011-03-16)
Adiponectin belongs to the group of biologically active substances secreted by adipocytes and referred to as adipokines. Disturbances in its secretion and/or action are thought to be involved in the pathogenesis of some metabolic diseases. However, regulation of adiponectin secretion
Akriti Kharbanda et al.
Science signaling, 13(621) (2020-03-05)
Non-small cell lung cancer (NSCLC) is often characterized by mutually exclusive mutations in the epidermal growth factor receptor (EGFR) or the guanosine triphosphatase KRAS. We hypothesized that blocking EGFR palmitoylation, previously shown to inhibit EGFR activity, might alter downstream signaling
Jarrod R Fortwendel et al.
Eukaryotic cell, 11(8), 966-977 (2012-05-09)
Ras is a highly conserved GTPase protein that is essential for proper polarized morphogenesis of filamentous fungi. Localization of Ras proteins to the plasma membrane and endomembranes through posttranslational addition of farnesyl and palmitoyl residues is an important mechanism through
Annarita Ciana et al.
Biochimica et biophysica acta, 1828(3), 924-931 (2012-12-12)
Erythrocyte lipid rafts are anchored to the underlying spectrin membrane skeleton [A. Ciana, C. Achilli, C. Balduini, G. Minetti, On the association of lipid rafts to the spectrin skeleton in human erythrocytes, Biochim. Biophys. Acta 1808 (2011) 183-190]. The nature
Stephanie A Amici et al.
The Journal of biological chemistry, 287(27), 23119-23127 (2012-05-18)
Nicotinic acetylcholine receptor (nAChR) cell surface expression levels are modulated during nicotine dependence and multiple disorders of the nervous system, but the mechanisms underlying nAChR trafficking remain unclear. To determine the role of cysteine residues, including their palmitoylation, on neuronal
Kenji Hayata et al.
Journal of pharmacological sciences, 108(3), 348-354 (2008-11-15)
To obtain compounds that promote glucose uptake in muscle cells, the novel cell lines A31-IS derived from Balb/c 3T3 A31 and C2C12-IS from mouse myoblast C2C12 were established. In both cell lines, glucose consumption was induced by insulin and suppressed
Benjamin C Jennings et al.
Journal of lipid research, 50(2), 233-242 (2008-10-02)
Pharmacologic approaches to studying palmitoylation are limited by the lack of specific inhibitors. Recently, screens have revealed five chemical classes of small molecules that inhibit cellular processes associated with palmitoylation (Ducker, C. E., L. K. Griffel, R. A. Smith, S.
A M Alonso et al.
Molecular and biochemical parasitology, 184(1), 39-43 (2012-04-10)
Protein palmitoylation is the reversible covalent attachment of palmitic acid onto proteins. This post-translational modification has been shown to play a part in diverse processes such as signal transduction, cellular localization and regulation of protein activity. Although many aspects of
Laura M Borland et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 875(2), 451-458 (2008-10-18)
Palmitoylation is the thioester linkage of the fatty acid, palmitate (C16:0), to cysteine residues on a protein or peptide. This dynamic and reversible post-translational modification increases the hydrophobicity of proteins/peptides, facilitating protein-membrane interactions, protein-protein interactions and intracellular trafficking of proteins.
Piergiorgio La Rosa et al.
Molecular endocrinology (Baltimore, Md.), 26(5), 762-774 (2012-03-27)
The estrogen receptor-α (ERα) is a transcription factor that regulates gene expression through the binding to its cognate hormone 17β-estradiol (E2). ERα transcriptional activity is regulated by E2-evoked 26S proteasome-mediated ERα degradation and ERα serine (S) residue 118 phosphorylation. Furthermore
Erik I Charych et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 30(27), 9027-9037 (2010-07-09)
Phosphodiesterase 10A (PDE10A) is a striatum-enriched, dual-specific cyclic nucleotide phosphodiesterase that has gained considerable attention as a potential therapeutic target for psychiatric disorders such as schizophrenia. As such, a PDE10A-selective inhibitor compound, MP-10, has recently entered clinical testing. Since little
Yuko Fukata et al.
The Journal of cell biology, 202(1), 145-161 (2013-07-10)
Distinct PSD-95 clusters are primary landmarks of postsynaptic densities (PSDs), which are specialized membrane regions for synapses. However, the mechanism that defines the locations of PSD-95 clusters and whether or how they are reorganized inside individual dendritic spines remains controversial.
Gareth M Thomas et al.
Neuron, 73(3), 482-496 (2012-02-14)
Palmitoylation, a key regulatory mechanism controlling protein targeting, is catalyzed by DHHC-family palmitoyl acyltransferases (PATs). Impaired PAT activity is linked to neurodevelopmental and neuropsychiatric disorders, suggesting critical roles for palmitoylation in neuronal function. However, few substrates for specific PATs are
Keli Chai et al.
Viruses, 13(1) (2020-12-31)
Membrane proteins of enveloped viruses have been reported to undergo palmitoylation, a post-translational modification often having a critical role in the function of these viral proteins and hence viral replication. In this study, we report that the foamy virus (FV)
Wei Yuan et al.
Proceedings of the National Academy of Sciences of the United States of America, 118(13) (2021-03-24)
The homeostasis of protein palmitoylation and depalmitoylation is essential for proper physiological functions in various tissues, in particular the central nervous system (CNS). The dysfunction of PPT1 (PPT1-KI, infantile neuronal ceroid lipofuscinosis [INCL] mouse model), which catalyze the depalmitoylation process
Shan He et al.
Comparative biochemistry and physiology. Toxicology & pharmacology : CBP, 155(2), 381-388 (2011-11-15)
The peroxisome proliferator-activated receptors (PPARs) are ligand-dependent transcription factors belonging to the nuclear receptor family, and can regulate various genes involved in lipid metabolism. The aim of the present study was to investigate the tissue distribution patterns of PPARs and
Yasser Heakal et al.
Cancer biology & therapy, 12(5), 427-435 (2011-07-05)
Neurotensin receptor-1 (NTSR-1) is a G-protein coupled receptor (GPCR) that has been recently identified as a mediator of cancer progression. NTSR-1 and its endogenous ligand, neurotensin (NTS), are co-expressed in several breast cancer cell lines and breast cancer tumor samples.
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