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Simultaneous recordings of membrane voltage and concentration of intracellular Ca2+ ([Ca2+]i) were made in apical dendrites of layer 5 pyramidal cells of rat neocortex after filling dendrites with the fluorescent Ca2+ indicator Calcium Green-1. Subthreshol ...
The agonists acetylcholine (ACh) and cholecystokinin (CCK) evoke oscillating cytosolic Ca2+ signals in pancreatic acinar cells. Low agonist concentrations evoke local cytosolic Ca2+ spikes confined to the secretory pole region and intracellular inositol tr ...
The effects of noradrenaline (NA) on synaptic responses in layer II of the entorhinal cortex (EC) were studied in normal and spontaneously epileptic mutant mice tottering using intracellular recording in a slice preparation. Neither the membrane properties ...
The effects of 1-oleoyl-2-acetylglycerol (OAG), an activator of protein kinase C (PKC), on NMDA receptor-mediated responses were investigated in CA1 neurones of hippocampal slices using current- and voltage-clamp techniques. 2. Topical application of OA ...
We examined the effect of elevating intracellular calcium ([Ca2+]i) on responses to iontophoretically applied N-methyl-D-aspartate (NMDA), and quisqualate in CA1 neurons of the hippocampal slice. Topical application of calcimycin (A23187), a calcium ionoph ...
The pore-forming alpha-toxin from Staphylococcus aureus is secreted as a soluble monomeric protein. In order to form a transmembrane channel, the protein has to undergo oligomerization and membrane insertion. Previous studies have shown that channel format ...
Aerolysin is a cytolytic toxin which forms channels in the plasma membranes of eucaryotic cells. The protein is secreted by Aeromonas hydrophila as an inactive protoxin. Its stability and water solubility are conferred by its ability to dimerize. Maturatio ...
Template-assembled proteins (TASPs) comprising 4 peptide blocks, each of either the natural melittin sequence (melittin-TASP) or of a truncated melittin sequence (amino acid 6-26, melittin6-26-TASP), C-terminally linked to a (linear or cyclic) 10-amino aci ...
Stable negative ions containing up to sixteen silicon atoms have been measured by mass spectrometry in RF power-modulated silane plasmas for amorphous silicon deposition. These hydrogenated silicon cluster ions reach much higher masses than the positive io ...
The coat protein of bacteriophage Pf3 forms discrete and stable ion channels of uniform size in planar bilayers of asolectin. Its primary sequence suggests a channel formed by a bundle of transmembrane helixes. Since the apparent transmembrane region only ...
