Negative regulation of syntaxin4/SNAP-23/VAMP2-mediated membrane fusion by Munc18c In Vitro [PDF]
Background: Translocation of the facilitative glucose transporter GLUT4 from an intracellular store to the plasma membrane is responsible for the increased rate of glucose transport into fat and muscle cells in response to insulin.
A Bracher+42 more
core +22 more sources
Mitofusins and OPA1 Mediate Sequential Steps in Mitochondrial Membrane Fusion [PDF]
Mitochondrial fusion requires the coordinated fusion of the outer and inner membranes. Three large GTPases—OPA1 and the mitofusins Mfn1 and Mfn2—are essential for the fusion of mammalian mitochondria.
David C. Chan+5 more
core +2 more sources
Synaptic proteins promote calcium-triggered fast transition from point contact to full fusion. [PDF]
The molecular underpinnings of synaptic vesicle fusion for fast neurotransmitter release are still unclear. Here, we used a single vesicle-vesicle system with reconstituted SNARE and synaptotagmin-1 proteoliposomes to decipher the temporal sequence of ...
Brunger, Axel T+13 more
core +1 more source
Fusion of isolated myoblast plasma membranes [PDF]
Fusion of plasma membranes isolated from myoblasts grown in culture has been investigated. 1. 1. Membrane fusion was specifically dependent on Ca2+ at physiological concentrations. However, at higher concentrations of cations, fusion could be triggered
Ahkong+59 more
core +1 more source
Fusion of neurohypophyseal membranes in vitro [PDF]
Freeze cleaving electron microscopy has shown that fusion of isolated secretory vesicles from bovine neurohypophyses was induced by Ca 2+ in micromolar concentrations. Mg 2+ and Sr 2+ were ineffective. Mg 2+ inhibited Ca 2+-induced fusion. In suspensions
Dahl, G.+3 more
core +1 more source
Calcium release through P2X4 activates calmodulin to promote endolysosomal membrane fusion [PDF]
Intra-endolysosomal Ca(2+) release is required for endolysosomal membrane fusion with intracellular organelles. However, the molecular mechanisms for intra-endolysosomal Ca(2+) release and the downstream Ca(2+) targets involved in the fusion remain ...
Baars+70 more
core +1 more source
Phagosome-lysosome fusion is a calcium-independent event in macrophages. [PDF]
Phagosome-lysosome membrane fusion is a highly regulated event that is essential for intracellular killing of microorganisms. Functionally, it represents a form of polarized regulated secretion, which is classically dependent on increases in ...
Ernst, JD+5 more
core +2 more sources
Assembly and architecture of the EBV B cell entry triggering complex. [PDF]
Epstein-Barr Virus (EBV) is an enveloped double-stranded DNA virus of the gammaherpesvirinae sub-family that predominantly infects humans through epithelial cells and B cells.
Chen, Jia+10 more
core +7 more sources
Ca2+-induced fusion of Golgi-derived secretory vesicles isolated from rat liver [PDF]
During the transport of plasma proteins from the cytoplasma of hepatocytes to the extracellular fluid srnall vesicles may act as shuttles between the Golgi complex and the plasma membrane.
Ahkong+18 more
core +1 more source
The stochastic entry of enveloped viruses: Fusion vs. endocytosis [PDF]
Viral infection requires the binding of receptors on the target cell membrane to glycoproteins, or ``spikes,'' on the viral membrane. The initial entry is usually classified as fusogenic or endocytotic.
Barocchi+28 more
core +2 more sources