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显示 1-29 共 29 条结果 关于 "840046P" 范围 论文
Anna Sundborger et al.
Journal of cell science, 124(Pt 1), 133-143 (2010-12-22)
Clathrin-mediated vesicle recycling in synapses is maintained by a unique set of endocytic proteins and interactions. We show that endophilin localizes in the vesicle pool at rest and in spirals at the necks of clathrin-coated pits (CCPs) during activity in
Membrane fission is promoted by insertion of amphipathic helices and is restricted by crescent BAR domains
Boucrot E, et al.
Cell, 149(1), 124-136 (2012)
Mounir Bendahmane et al.
Journal of neurochemistry, 154(6), 598-617 (2020-02-15)
Synaptotagmin-7 (Syt-7) is one of two major calcium sensors for exocytosis in adrenal chromaffin cells, the other being synaptotagmin-1 (Syt-1). Despite a broad appreciation for the importance of Syt-7, questions remain as to its localization, function in mediating discharge of
Sonia Rodríguez-Fdez et al.
Cells, 8(12) (2020-01-01)
Phosphatidylinositol-5 phosphate (PI5P) and other mono-phosphoinositides (mono-PIs) play second messenger roles in both physiological and pathological conditions. Despite this, their intracellular targets and mechanisms of action remain poorly characterized. Here, we show that Vav1, a protein that exhibits both Rac1
C M Field et al.
Methods in cell biology, 137, 395-435 (2017-01-10)
We report optimized methods for preparing actin-intact Xenopus egg extract. This extract is minimally perturbed, undiluted egg cytoplasm where the cell cycle can be experimentally controlled. It contains abundant organelles and glycogen and supports active metabolism and cytoskeletal dynamics that closely
Structural dynamics of potassium-channel gating revealed by single-molecule FRET
Wang S, et al.
Nature Structural and Molecular Biology, 23(1), 31-31 (2016)
Isaac J Fisher et al.
Structure (London, England : 1993), 28(7), 810-819 (2020-05-14)
Phospholipase C (PLC) enzymes hydrolyze phosphoinositide lipids to inositol phosphates and diacylglycerol. Direct activation of PLCβ by Gαq and/or Gβγ subunits mediates signaling by Gq and some Gi coupled G-protein-coupled receptors (GPCRs), respectively. PLCβ isoforms contain a unique C-terminal extension
Tomoe Tsuboi et al.
Atherosclerosis, 297, 32-39 (2020-02-18)
Nobiletin (NOB), a functional ingredient found in citrus peel, is said to act against diabetes, obesity, and atherosclerosis. It has been reported to activate AMPK pathway, as well as increase SREBP1c, PPARα and PPARγ expression. However, no molecular mechanism has
Regulation of ion channels by phosphatidylinositol 4, 5-bisphosphate
Suh BC and Hille B
Current Opinion in Neurobiology, 15(3), 370-378 (2005)
Gillian L Dornan et al.
Structure (London, England : 1993), 28(2), 145-156 (2019-12-14)
The class I phosphoinositide 3-kinases (PI3Ks) are key signaling enzymes composed of a heterodimer of a p110 catalytic subunit and a p85 regulatory subunit, with PI3K mutations being causative of multiple human diseases including cancer, primary immunodeficiencies, and developmental disorders.
Friction mediates scission of tubular membranes scaffolded by BAR proteins
Simunovic M, et al.
Cell, 170(1), 172-184 (2017)
Jihong Bai et al.
Nature structural & molecular biology, 11(1), 36-44 (2004-01-14)
Synaptotagmin-1 (syt), the putative Ca2+ sensor for exocytosis, is anchored to the membrane of secretory organelles. Its cytoplasmic domain is composed of two Ca2+-sensing modules, C2A and C2B. Syt binds phosphatidylinositol 4,5-bisphosphate (PIP2), a plasma membrane lipid with an essential
Dieter R Klopfenstein et al.
Molecular biology of the cell, 15(8), 3729-3739 (2004-05-25)
UNC-104 (KIF1A) is a kinesin motor that transports synaptic vesicles from the neuronal cell body to the terminal. Previous in vitro studies have shown that a Dictyostelium relative of UNC-104 transports liposomes containing acidic phospholipids, but whether this interaction is
Giada Dogliotti et al.
Nature communications, 8, 15747-15747 (2017-06-27)
The serine/threonine kinase LKB1 regulates various cellular processes such as cell proliferation, energy homeostasis and cell polarity and is frequently downregulated in various tumours. Many downstream pathways controlled by LKB1 have been described but little is known about the upstream
Rose E Dixon et al.
eLife, 4 (2015-02-26)
In the heart, reliable activation of Ca(2+) release from the sarcoplasmic reticulum during the plateau of the ventricular action potential requires synchronous opening of multiple CaV1.2 channels. Yet the mechanisms that coordinate this simultaneous opening during every heartbeat are unclear.
Mathias Haag et al.
Metabolites, 2(1), 57-76 (2012-01-01)
Lipids, such as phosphoinositides (PIPs) and diacylglycerol (DAG), are important signaling intermediates involved in cellular processes such as T cell receptor (TCR)-mediated signal transduction. Here we report identification and quantification of PIP, PIP2 and DAG from crude lipid extracts. Capitalizing
Emmanuel Boucrot et al.
Cell, 149(1), 124-136 (2012-04-03)
Shallow hydrophobic insertions and crescent-shaped BAR scaffolds promote membrane curvature. Here, we investigate membrane fission by shallow hydrophobic insertions quantitatively and mechanistically. We provide evidence that membrane insertion of the ENTH domain of epsin leads to liposome vesiculation, and that
Sascha Martens et al.
Science (New York, N.Y.), 316(5828), 1205-1208 (2007-05-05)
Synaptic vesicles loaded with neurotransmitters are exocytosed in a soluble N-ethylmaleimide-sensitive factor attachment protein receptor (SNARE)-dependent manner after presynaptic depolarization induces calcium ion (Ca2+) influx. The Ca2+ sensor required for fast fusion is synaptotagmin-1. The activation energy of bilayer-bilayer fusion
Debasis Das et al.
Nature communications, 11(1), 231-231 (2020-01-15)
The opening of a fusion pore during exocytosis creates the first aqueous connection between the lumen of a vesicle and the extracellular space. Soluble N-ethylmaleimide-sensitive factor attachment protein receptors (SNAREs) mediate the formation of these dynamic structures, and their kinetic
Yasunori Saheki et al.
Nature cell biology, 18(5), 504-515 (2016-04-12)
Acute metabolic changes in plasma membrane (PM) lipids, such as those mediating signalling reactions, are rapidly compensated by homeostatic responses whose molecular basis is poorly understood. Here we show that the extended synaptotagmins (E-Syts), endoplasmic reticulum (ER) proteins that function
Phuong A Nguyen et al.
Methods in cell biology, 128, 223-241 (2015-05-23)
Cell division in prokaryotes and eukaryotes is commonly initiated by the well-controlled binding of proteins to the cytoplasmic side of the cell membrane. However, a precise characterization of the spatiotemporal dynamics of membrane-bound proteins is often difficult to achieve in
Koen Temmerman et al.
Journal of lipid research, 50(6), 1245-1254 (2009-01-16)
A diverse set of experimental systems has been developed to probe protein-lipid interactions. These include measurements with the headgroups of membrane lipids in solution, immobilized membrane lipids, and analysis of protein binding to membrane lipids reconstituted in liposomes. Each of
Gregory H Tyson et al.
The Journal of biological chemistry, 290(5), 2919-2937 (2014-12-17)
Bacterial toxins require localization to specific intracellular compartments following injection into host cells. In this study, we examined the membrane targeting of a broad family of bacterial proteins, the patatin-like phospholipases. The best characterized member of this family is ExoU
Design and structural characterization of potent and selective inhibitors of phosphatidylinositol 4 kinase IIIbeta
Rutaganira FU, et al.
Journal of Medicinal Chemistry, 59(5), 1830-1839 (2016)
Dieter R Klopfenstein et al.
Cell, 109(3), 347-358 (2002-05-23)
Unc104 (KIF1A) kinesin transports membrane vesicles along microtubules in lower and higher eukaryotes. Using an in vitro motility assay, we show that Unc104 uses a lipid binding pleckstrin homology (PH) domain to dock onto membrane cargo. Through its PH domain
Silke Wahl et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 36(8), 2473-2493 (2016-02-26)
Mutations in the Tulp1 gene cause severe, early-onset retinitis pigmentosa (RP14) in humans. In the retina, Tulp1 is mainly expressed in photoreceptors that use ribbon synapses to communicate with the inner retina. In the present study, we demonstrate that Tulp1
Xiaonan Xin et al.
BMC neuroscience, 10, 61-61 (2009-06-19)
Guanine nucleotide exchange factors (GEFs) and their target Rho GTPases regulate cytoskeletal changes and membrane trafficking. Dynamin, a large force-generating GTPase, plays an essential role in membrane tubulation and fission in cells. Kalirin12, a neuronal RhoGEF, is found in growth
Jitendra Kumar et al.
PLoS genetics, 6(11), e1001200-e1001200 (2010-11-17)
UNC-104/KIF1A is a Kinesin-3 motor that transports synaptic vesicles from the cell body towards the synapse by binding to PI(4,5)P(2) through its PH domain. The fate of the motor upon reaching the synapse is not known. We found that wild-type
Hanna Brzeska et al.
The Journal of biological chemistry, 283(46), 32014-32023 (2008-09-06)
The tail of Acanthamoeba myosin IC (AMIC) has a basic region (BR), which contains a putative pleckstrin homology (PH) domain, followed by two Gly/Pro/Ala (GPA)-rich regions separated by a Src homology 3 (SH3) domain. Cryoelectron microscopy had shown that the
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