نتایج جستجو برای: syt
تعداد نتایج: 361 فیلتر نتایج به سال:
Members of the synaptotagmin family have been proposed to function as Ca2+ sensors in membrane fusion. Syt VII is a ubiquitously expressed synaptotagmin previously implicated in plasma membrane repair and Trypanosoma cruzi invasion, events which are mediated by the Ca2+-regulated exocytosis of lysosomes. Here, we show that embryonic fibroblasts from Syt VII-deficient mice are less susceptible t...
The C2A domain is one of two calcium ion (Ca(2+))- and membrane-binding domains within synaptotagmin I (Syt I), the identified Ca(2+) sensor for regulated exocytosis of neurotransmitter. We propose that the mechanistic basis for C2A's response to Ca(2+) and cellular function stems from marginal stability and ligand-induced redistributions of protein conformers. To test this hypothesis, we used ...
Synovial sarcoma is a primitive mesenchymal tumor which occurs most frequently in soft tissues. Some unusual locations of synovial sarcoma could lead to diagnostic challenges. In this study, we reported a case of primary synovial sarcoma arose in the posterior pharyngeal wall. X-ray examination showed a space-occupying lesion in the post-pharyngeal wall. Frozen section and conventional histopat...
The extended synaptotagmins, E-Syt1, 2 and 3, are multiple C2 domain membrane proteins that are tethered to the endoplasmic reticulum and interact in a calcium dependent manner with plasma membrane phospholipids to form endoplasmic reticulum - plasma membrane junctions. These junctions have been implicated in the exchange of phospholipids between the 2 organelles. The E-Syts have further been i...
Synaptotagmins comprise a large protein family, of which synaptotagmin 1 (Syt1) is a Ca2+ sensor for fast exocytosis, and its close relative, synaptotagmin 2 (Syt2), is assumed to serve similar functions. Chromaffin cells express Syt1 but not Syt2. We compared secretion from chromaffin cells from Syt1 null mice overexpressing either Syt isoform. High time-resolution capacitance measurement show...
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