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Using an α-Bungarotoxin Binding Site Tag to Study GABA A Receptor Membrane Localization and Trafficking
Published on: March 28, 2014
Strain comparisons and developmental profile of the delta subunit of the murine GABAA receptor
1Department of Pharmacology, University of Maryland School of Medicine, Baltimore 21201.
Abstract:
GABAA receptors are multisubunit inhibitory chloride channels in the brain which open in response to binding of gamma-aminobutyric acid (GABA) and are thought to be involved in some forms of seizures. We compare the sequence and expression of the GABAA receptor delta subunit in audiogenic seizure prone (DBA/2J) and seizure resistant (C57BL/6J) inbred strains of mice and also report this subunit's postnatal developmental profile. We did not detect any unique features in the delta subunits of DBA/2J mice which might explain their seizure susceptibility, but did detect in some clones from both DBA/2J mice and C57BL/6J mice an unusual substitution of His for a conserved Tyr in the delta subunit's first putative transmembrane region.
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