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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1-4
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pubmed:dateCreated |
1993-4-15
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pubmed:abstractText |
The highest structural diversity of GABAA-receptor subunits is observed among members of the alpha-subunit class. Using subunit-specific antisera, the receptors containing the alpha 2-subunit were characterized. Western blots revealed an apparent molecular size of 52 kDa for the alpha 2-subunit. Immunohistochemically, the alpha 2-subunit was most preponderant in areas which lack the alpha 1-subunit, e.g. striatum and olfactory bulb granule cell layer, suggesting that these two subunits represent largely distinct receptor subtypes. Pharmacologically, the receptor population which was immunoprecipitated by the alpha 2-subunit-specific antisera displayed a drug binding profile characterized by a low affinity for CL 218872, beta CCM and zolpidem. This is in striking contrast to the high affinities of these ligands displayed by receptors immunoprecipitated by the alpha 1-subunit-specific antiserum. Thus, the alpha 1- and the alpha 2-subunit characterize two GABAA-receptor populations which greatly differ in brain distribution and pharmacological profile.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:issn |
0197-5110
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
13
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
467-77
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pubmed:dateRevised |
2003-11-14
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pubmed:meshHeading |
pubmed-meshheading:8383760-Amino Acid Sequence,
pubmed-meshheading:8383760-Animals,
pubmed-meshheading:8383760-Antibody Specificity,
pubmed-meshheading:8383760-Immune Sera,
pubmed-meshheading:8383760-Immunoenzyme Techniques,
pubmed-meshheading:8383760-Molecular Sequence Data,
pubmed-meshheading:8383760-Peptide Fragments,
pubmed-meshheading:8383760-Precipitin Tests,
pubmed-meshheading:8383760-Radioligand Assay,
pubmed-meshheading:8383760-Rats,
pubmed-meshheading:8383760-Receptors, GABA-A
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pubmed:year |
1993
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pubmed:articleTitle |
GABAA-receptors: drug binding profile and distribution of receptors containing the alpha 2-subunit in situ.
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pubmed:affiliation |
Institute of Pharmacology, University of Zürich, Switzerland.
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pubmed:publicationType |
Journal Article
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