نتایج جستجو برای: open channel junction
تعداد نتایج: 652144 فیلتر نتایج به سال:
For gap junction channels to function, their subunit proteins, referred to as connexins, have to be synthesized and inserted into the cell membrane in their native configuration. Like other transmembrane proteins, connexins are synthesized and inserted cotranslationally into the endoplasmic reticulum membrane. Membrane insertion is followed by their assembly and transport to the plasma membrane...
Micrographs of isolated gap junction specimens, negatively stained with one molybdate, three tungstate and three uranyl stains, were recorded at low and high irradiation. Fourier-averaged images of the negatively stained gap junctions have been self-consistently scaled to identify conserved and variable features. Intrinsic features in the hexagonally averaged images have been distinguished from...
The regulation of transmitter release at the neuromuscular junction is tightly regulated by the influx of calcium in the presynaptic nerve terminal. Interestingly, the probability that release sites at the neuromuscular junction will liberate transmitter during each action potential is very low. The reasons for this low probability of release are not well understood. To test the hypothesis that...
The gating properties of macroscopic and microscopic gap junctional currents were compared by applying the dual whole cell patch clamp technique to pairs of neonatal rat Schwann cells. In response to transjunctional voltage pulses (Vj), macroscopic gap junctional currents decayed exponentially with time constants ranging from < 1 to < 10 s before reaching steady-state levels. The relationship b...
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