Linked Life Data

7963552

Source:http://linkedlifedata.com/resource/pubmed/id/7963552

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
11
pubmed:dateCreated
1994-12-20
pubmed:abstractText
The role of increases in intracellular calcium levels on tyrosine phosphorylation in human B lymphocytes was studied. Stimulation of normal, resting B lymphocytes or B lymphoblastoid cells with the calcium ionophores ionomycin or A23187 induced the tyrosine phosphorylation and the enzymatic activation of microtubule-associated protein-2 kinase (MAP2-K). Treatment of these cells with PMA induced tyrosine phosphorylation of a protein with the identical mobility, as well as the enzymatic activation of MAP2-K. Stimulation of these cells with ionomycin also resulted in increased ribosomal S6 kinase activity. Activation of MAP2-K in B lymphocytes by calcium ionophore was rapid (detectable within 1 min), transient (returning to background levels by 45 min), and dependent on extracellular calcium. These results demonstrate that transmembrane calcium flux induced by calcium ionophore results in the tyrosine phosphorylation and enzymatic activation of MAP2-K in human B cells.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0022-1767
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
153
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
4890-8
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
Activation of MAP2-kinase in B lymphocytes by calcium ionophores.
pubmed:affiliation
Department of Pediatrics, National Jewish Center for Immunology and Respiratory Medicine, Denver, CO 80206.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't