Linked Life Data

328783

Source:http://linkedlifedata.com/resource/pubmed/id/328783

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1977-9-17
pubmed:abstractText
Reduction of IgM antibodies to DNA with mercaptans such as dithioerythrol or 2-mercaptoethanol completely destroys DNA binding in the Farr assay and in the immunofluorescence technique by Crithidia luciliae. In contrast reduction of IgG antibodies to DNA results in a six-fold increase of DNA binding in the Farr assay while no effect on titres in the immunofluorescence technique can be observed. Our results lead to the following conclusions: 1) The Farr assay is selective for high avidity interactions; only a minor part of IgG antibodies to DNA is measured; 2) 7S IgM antibodies to DNA cannot be demonstrated in the Farr assay or the immunofluorescence technique; obviously only multivalent interactions, as obtained with the intact 19S IgM molecule are stable in these assays; 3) reduction of IgG leads to a greater flexibility of this molecule; this facilitates monogamous bivalent binding to DNA; 4) THE PRESENTATION OF DNA in the kinetoplast of Crithidia luciliae favours a monogamous bivalent binding of antibodies to DNA with high avidity; this accounts for occasionally observed discrepancies between anti-DNA activity in the Farr assay and in the immunofluorescence technique.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0022-1759
pubmed:author
pubmed:issnType
Print
pubmed:volume
16
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
143-52
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed:year
1977
pubmed:articleTitle
Immunology of DNA. VI. The effect of mercaptans on IgG and IgM anti-dsDNA.
pubmed:publicationType
Journal Article