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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4949 Pt 1
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pubmed:dateCreated |
1990-4-27
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pubmed:abstractText |
In Hermissenda crassicornis conditioned to associate light and rotation, type B photoreceptor neurons exhibit pairing-specific decreases in the potassium currents IA and IK-Ca, which account for many of the behavioral changes elicited by associative conditioning. To determine which proteins are involved in storage of this memory, high-performance liquid chromatography was used to examine proteins from Hermissenda eyes. Conditioning-specific changes in four phosphoproteins were observed 24 hours after conditioning. One of these proteins, cp20, was purified to apparent homogeneity and found to be a G protein. When injected back into Hermissenda type B cells, cp20 reduced IK and IK-Ca in a manner indistinguishable from the reduction caused by conditioning, suggesting that this protein may play a crucial role in memory acquisition or retention.
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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/Eye Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/GTP-Binding Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Phosphoproteins,
http://linkedlifedata.com/resource/pubmed/chemical/Potassium,
http://linkedlifedata.com/resource/pubmed/chemical/Potassium Channels
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pubmed:status |
MEDLINE
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pubmed:month |
Mar
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pubmed:issn |
0036-8075
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
23
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pubmed:volume |
247
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1479-83
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pubmed:dateRevised |
2007-3-19
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pubmed:meshHeading |
pubmed-meshheading:2108498-Animals,
pubmed-meshheading:2108498-Chromatography, High Pressure Liquid,
pubmed-meshheading:2108498-Chromatography, Ion Exchange,
pubmed-meshheading:2108498-Conditioning (Psychology),
pubmed-meshheading:2108498-Eye Proteins,
pubmed-meshheading:2108498-GTP-Binding Proteins,
pubmed-meshheading:2108498-Learning,
pubmed-meshheading:2108498-Mollusca,
pubmed-meshheading:2108498-Phosphoproteins,
pubmed-meshheading:2108498-Potassium,
pubmed-meshheading:2108498-Potassium Channels
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pubmed:year |
1990
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pubmed:articleTitle |
Isolation of a G protein that is modified by learning and reduces potassium currents in Hermissenda.
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pubmed:affiliation |
Laboratory of Molecular and Cellular Neurobiology, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892.
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pubmed:publicationType |
Journal Article
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