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http://hdl.handle.net/20.500.12358/24374
TitleG-Protein Modulation of α1A (P/Q)-Type Calcium Channel Expressed in GH3 Cells
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Abstract

GH(3) cell lines stably expressing α1A channel were established and the modulation of this channel by G-protein through membrane-delimited pathways were studied. Wild type GH(3) cells were found to express ω-conotoxin MVIIC (MVIIC) sensitive Ca2+ current but this component was different from the α1A channel because of its susceptibility to G-protein modulation, suggesting MVIIC also blocks channels other than P/Q type. α1A channel expressed in GH3 cells showed slowing of activation and reduction of current amplitude by the application of carbachol. Both of these effects were pertussis toxin (PTX) sensitive and voltage dependent. α1A channels were also found to be modulated through a PTX insensitive pathway, the modulations observed were similar to those in the PTX sensitive pathway. The results further suggest that these two effects are governed by a different mechanism in both PTX sensitive and …

Authors
Zong, Shuqin
Yassin, Maged M.
Tanabe, Tsutomu
TypeJournal Article
Date1995
Published inBiochemical and biophysical research communications
SeriesVolume: 215, Number: 1
PublisherAcademic Press
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  • Staff Publications- Faculty of Medicine [149]
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The institutional repository of the Islamic University of Gaza was established as part of the ROMOR project that has been co-funded with support from the European Commission under the ERASMUS + European programme. This publication reflects the views only of the author, and the Commission cannot be held responsible for any use which may be made of the information contained therein.

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The institutional repository of the Islamic University of Gaza was established as part of the ROMOR project that has been co-funded with support from the European Commission under the ERASMUS + European programme. This publication reflects the views only of the author, and the Commission cannot be held responsible for any use which may be made of the information contained therein.

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