Promiscuity of GABAA-receptor beta 3 subunits as demonstrated by their presence in alpha 1, alpha 2 and alpha 3 subunit-containing receptor subpopulations.

Pollard, S., Duggan, M.J. and Stephenson, F.A. (1991) Promiscuity of GABAA-receptor beta 3 subunits as demonstrated by their presence in alpha 1, alpha 2 and alpha 3 subunit-containing receptor subpopulations. FEBS Letters, 295 (1-3). pp. 81-83. 10.1016/0014-5793(91)81390-T.

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DOI: 10.1016/0014-5793(91)81390-T

Abstract

Polyclonal antibodies were raised in rabbits against the GABAA-receptor beta 3 subunit peptide sequence, KQSMPREGHGRHMDR-NH2 coupled to keyhole limpet haemocyanin. These anti-beta 3 379-393 antibodies immunoprecipitated in a dose-dependent manner specific benzodiazepine agonist binding sites from Na+ deoxycholate extracts of bovine cerebral cortex. In immunoblots, anti-beta 3 379-393 antibodies recognised two species with Mr 59,900 and Mr 57,200 in all preparations tested, which included crude detergent-solubilised, benzodiazepine affinity chromatography-purified receptor, anti-alpha 1 324-341 antibody, anti-Cys alpha 2 414-424 antibody and anti-Cys alpha 3 454-467 antibody immunoaffinity-purified GABAA-receptor subpopulations. These results provide evidence for the ubiquity and promiscuity of the GABAA-receptor beta 3 subunit.

Item Type:Article
Departments, units and centres:Department of Pharmaceutical and Biological Chemistry > Department of Pharmaceutical and Biological Chemistry
ID Code:2580
Journal or Publication Title:FEBS Letters
Deposited By:Library Staff
Deposited On:25 Nov 2011 16:18
Last Modified:25 Nov 2011 16:18

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