Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
14
pubmed:dateCreated
1990-6-13
pubmed:abstractText
Two monoclonal IgG antibodies E11 and G11, which react with parathyroid and kidney tubule cells, are in the present communication demonstrated to immunostain the surface of cytotrophoblast cells in human placenta. The G11 but not the E11 antibody has earlier been found to interfere with the sensing and gating of extracellular calcium in parathyroid cells. Microfluorometric measurement of the cytoplasmic calcium (Ca2+i) concentration was performed on suspended placental cells loaded with fura-2. The E11-positive placental cells displayed biphasic and parathyroid-like increases in Ca2+i in response to extracellular Ca2+. This increase was blocked by the G11 antibody and absent in the E11-negative placental cells. A sandwich enzyme-linked immunosorbent assay was constructed in which the G11 and E11 antibodies were shown to react with the same molecule. This calcium sensor was isolated and found to consist of a single, glycosylated polypeptide of approximately 500 kDa.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0021-9258
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
265
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
8275-9
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
500-Kilodalton calcium sensor regulating cytoplasmic Ca2+ in cytotrophoblast cells of human placenta.
pubmed:affiliation
Department of Surgery, University of Uppsala, Sweden.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't