rdf:type |
|
lifeskim:mentions |
|
pubmed:issue |
4
|
pubmed:dateCreated |
1977-9-22
|
pubmed:abstractText |
The 5'-nucleotidase properties of isolated lymphocyte plasma membranes from young pig mesenteric nodes are described; nucleosides-5'-monophosphates are the substrates of this specific enzyme. Concanavalin A inhibits this enzyme; on the same membranes this mitogen does not affect alkaline phosphatase and activates the membrane bound (Ca2+) ATPase. The 5'-nucleotidase inhibition is due to a specific interaction of Con A with carbohydrate groups of the membrane; its high positive cooperativity suggests that the lectin promotes reorganization of the membrane bound 5'-nucleotidase. Solubilization of the 5'-nucleotidase does not prevent the effect of Con A and the solubilized enzyme is firmly bound by Con A-Sepharose 4B; these results suggest that Con A inhibits the enzyme by a direct interaction and that 5'-nucleotidase can be considered as an eventual receptor for the lectin.
|
pubmed:language |
fre
|
pubmed:journal |
|
pubmed:citationSubset |
IM
|
pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:issn |
0300-9084
|
pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:volume |
59
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
425-32
|
pubmed:dateRevised |
2006-11-15
|
pubmed:meshHeading |
pubmed-meshheading:141952-Adenosine Triphosphatases,
pubmed-meshheading:141952-Alkaline Phosphatase,
pubmed-meshheading:141952-Animals,
pubmed-meshheading:141952-Calcium,
pubmed-meshheading:141952-Cell Membrane,
pubmed-meshheading:141952-Chromatography, Affinity,
pubmed-meshheading:141952-Concanavalin A,
pubmed-meshheading:141952-Enzyme Activation,
pubmed-meshheading:141952-Kinetics,
pubmed-meshheading:141952-Lymphocytes,
pubmed-meshheading:141952-Nucleotidases,
pubmed-meshheading:141952-Receptors, Concanavalin A,
pubmed-meshheading:141952-Swine
|
pubmed:year |
1977
|
pubmed:articleTitle |
[5'-Nucleotidase activity of lymphocyte plasma membranes. Effect of concanavalin A].
|
pubmed:publicationType |
Journal Article,
English Abstract
|