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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5063
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pubmed:dateCreated |
1992-7-8
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pubmed:abstractText |
Glutamate-operated ion channels (GluR channels) of the L-alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA)-kainate subtype are found in both neurons and glial cells of the central nervous system. These channels are assembled from the GluR-A, -B, -C, and -D subunits; channels containing a GluR-B subunit show an outwardly rectifying current-voltage relation and low calcium permeability, whereas channels lacking the GluR-B subunit are characterized by a doubly rectifying current-voltage relation and high calcium permeability. Most cell types in the central nervous system coexpress several subunits, including GluR-B. However, Bergmann glia in rat cerebellum do not express GluR-B subunit genes. In a subset of cultured cerebellar glial cells, likely derived from Bergmann glial cells. GluR channels exhibit doubly rectifying current-voltage relations and high calcium permeability, whereas GluR channels of cerebellar neurons have low calcium permeability. Thus, differential expression of the GluR-B subunit gene in neurons and glia is one mechanism by which functional properties of native GluR channels are regulated.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Calcium,
http://linkedlifedata.com/resource/pubmed/chemical/Glutamates,
http://linkedlifedata.com/resource/pubmed/chemical/RNA, Messenger,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Kainic Acid,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Neurotransmitter
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pubmed:status |
MEDLINE
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pubmed:month |
Jun
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pubmed:issn |
0036-8075
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
12
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pubmed:volume |
256
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1566-70
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pubmed:dateRevised |
2007-3-19
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pubmed:meshHeading |
pubmed-meshheading:1317970-Animals,
pubmed-meshheading:1317970-Calcium,
pubmed-meshheading:1317970-Cell Membrane Permeability,
pubmed-meshheading:1317970-Cells, Cultured,
pubmed-meshheading:1317970-Cerebellum,
pubmed-meshheading:1317970-Gene Expression,
pubmed-meshheading:1317970-Glutamates,
pubmed-meshheading:1317970-Ion Channel Gating,
pubmed-meshheading:1317970-Neuroglia,
pubmed-meshheading:1317970-Nucleic Acid Hybridization,
pubmed-meshheading:1317970-RNA, Messenger,
pubmed-meshheading:1317970-Rats,
pubmed-meshheading:1317970-Receptors, Kainic Acid,
pubmed-meshheading:1317970-Receptors, Neurotransmitter
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pubmed:year |
1992
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pubmed:articleTitle |
Calcium-permeable AMPA-kainate receptors in fusiform cerebellar glial cells.
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pubmed:affiliation |
Max-Planck-Institut für Medizinische Forschung, Abteilung Zellphysiologie, Heidelberg, Germany.
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pubmed:publicationType |
Journal Article,
In Vitro
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