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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1983-4-7
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pubmed:abstractText |
Addition of the mitogenic lectin concanavalin A to rat spleen cells results in a small increase in the steady-state Ca2+ content of the cells. 45Ca2+ fluxes were measured under conditions where artifacts due to Ca2+ binding to concanavalin A could be excluded. Both 45Ca2+ influx into and efflux from these cells are significantly activated by the lectin. If 45Ca2+ is added 30 min after concanavalin A the rate of influx is further enhanced. The increase in 45Ca2+ influx correlates well with binding of concanavalin A to the cells. At low concentrations (optimal mitogenic) of the lectin (1 and 3 micrograms/ml) no significant increase in 45Ca2+ influx occurs but an increase in 45Ca2+ efflux is still observed. The results suggest that concanavalin A binding to the cell surface causes an increase in Ca2+ influx into the cells and that activation of Ca2+ efflux occurs as a response to an increase in the cytosolic Ca2+ activity. Thus, Ca2+ may well play a role in triggering lymphocyte activation.
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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/Calcimycin,
http://linkedlifedata.com/resource/pubmed/chemical/Calcium,
http://linkedlifedata.com/resource/pubmed/chemical/Concanavalin A,
http://linkedlifedata.com/resource/pubmed/chemical/Egtazic Acid,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Concanavalin A
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pubmed:status |
MEDLINE
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pubmed:month |
Dec
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pubmed:issn |
0006-3002
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
22
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pubmed:volume |
693
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
315-9
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:6818989-Animals,
pubmed-meshheading:6818989-Biological Transport, Active,
pubmed-meshheading:6818989-Calcimycin,
pubmed-meshheading:6818989-Calcium,
pubmed-meshheading:6818989-Concanavalin A,
pubmed-meshheading:6818989-Egtazic Acid,
pubmed-meshheading:6818989-Kinetics,
pubmed-meshheading:6818989-Rats,
pubmed-meshheading:6818989-Rats, Inbred Strains,
pubmed-meshheading:6818989-Receptors, Concanavalin A,
pubmed-meshheading:6818989-Spleen
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pubmed:year |
1982
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pubmed:articleTitle |
Concanavalin A binding and Ca2+ fluxes in rat spleen cells.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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