Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
50
pubmed:dateCreated
1994-1-31
pubmed:abstractText
We have previously demonstrated the existence of an adenosine 5',5"',P1,P4-tetraphosphate (Ap4A) receptor in mouse hart membrane fractions [Hilderman, R. H., Martin, M., Zimmerman, J. K., & Pivorun, E. P. (1991) J. Biol. Chem. 266, 6915-6918]. However, we did not determine the cellular localization or distribution of the receptor. In this report, the Ap4A receptor is shown to be on the cell surface of individual mouse heart cells by the following four methods: (1) intact cells show specific, saturable, and reversible binding of Ap4A; (2) monoclonal antibodies (Mabs) raised against the Ap4A receptor inhibit Ap4A binding to its receptor on intact heart cells; (3) bound Mabs are shown to be at the outer cell surface via reaction with a alkaline phosphatase conjugated goat anti-rat IgG; (4) when intact cells are labeled with the impermeable cell surface labeling reagent, (sulfosuccinimido) biotin, labeled receptor is immunoprecipitated with Mabs. Furthermore, subcellular fractionation of mouse hearts demonstrates that virtually all of the Ap4A receptor is associated with a membrane fraction with at least 77% of the active receptor on plasma membranes.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0006-2960
pubmed:author
pubmed:issnType
Print
pubmed:day
21
pubmed:volume
32
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
14009-14
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed:year
1993
pubmed:articleTitle
The adenosine 5',5"',P1,P4-tetraphosphate receptor is at the cell surface of heart cells.
pubmed:affiliation
Department of Biological Sciences, Clemson University, South Carolina 29634-1903.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't