Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1997-9-2
pubmed:abstractText
Glycosylphosphatidylinositol (GPI)-specific phospholipase D (GPI-PLD) is a secretory protein present in high amounts in mammalian body fluids. Its cDNA has been isolated and encodes a signal peptide of 23 amino acids and the mature protein of 816 amino acids. We generated cDNAs encoding a signal peptide-deficient and a GPI-anchored form of GPI-PLD and transiently transfected these constructs into COS-1 cells. The signal peptide-deficient form of GPI-PLD was expressed as a 90-kDa protein that was catalytically active and was localized intracellularly. Cells transfected with cDNA encoding the GPI-anchored form of GPI-PLD expressed a catalytically active enzyme of 100 kDa that could be labelled with [3H]ethanolamine demonstrating its modification by a GPI structure. Expression of the GPI-anchored form of GPI-PLD resulted in the release of endogenous GPI-anchored alkaline phosphatase from COS-1 cells, whereas expression of the intracellular form of GPI-PLD had no effect on membrane attachment of endogenous alkaline phosphatase. Similarly, in cells cotransfected with GPI-anchored placental alkaline phosphatase (PLAP) and the GPI-anchored form of GPI-PLD, PLAP was released into the cell culture supernatant while expression of the signal peptide-deficient form of GPI-PLD did not affect the amount of cell-associated PLAP.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0006-3002
pubmed:author
pubmed:issnType
Print
pubmed:day
24
pubmed:volume
1357
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
329-38
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
Expression of intracellular and GPI-anchored forms of GPI-specific phospholipase D in COS-1 cells.
pubmed:affiliation
Institute of Biochemistry and Molecular Biology, University of Bern, Switzerland.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't