Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1992-4-16
pubmed:abstractText
Biliary-glycoprotein (BGP), a cell adhesion molecule related to carcinoembryonic antigen (CEA), has been shown to exist as several alternatively spliced isoforms. Here we show that BGPa and BGPb are phosphorylated in the chronic myelogenous leukaemia cell line KG-1, which constitutively expresses several BGP isoforms, and Chinese hamster LR-73 cells transfected with the cDNAs encoding BGPa and BGPb. The phosphorylation can be augmented with the protein tyrosine phosphatase inhibitor ammonium vanadate and with TPA (an activator of protein kinase C). Phospho-amino acid analysis of phosphorylated BGPs demonstrated that phosphorylation occurs on serine, threonine and tyrosine residues. Phosphorylation reactions carried out in in vitro membrane preparations from KG-1 cells revealed a close association of BGP proteins with membrane associated protein tyrosine kinases. These observations suggest an association of BGP proteins with signal transduction molecules which is regulated by alternative splicing of the cytoplasmic domain.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0006-3002
pubmed:author
pubmed:issnType
Print
pubmed:day
19
pubmed:volume
1134
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
46-52
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Tyrosine phosphorylation of biliary glycoprotein, a cell adhesion molecule related to carcinoembryonic antigen.
pubmed:affiliation
Department of Biochemistry, University of Ottawa, Ontario, Canada.
pubmed:publicationType
Journal Article, Comparative Study, In Vitro, Research Support, Non-U.S. Gov't