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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
9
|
pubmed:dateCreated |
1987-1-22
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pubmed:abstractText |
Monoclonal antibodies MRC OX-45 and OX-46 detect identical or juxtaposed antigenic determinants on a novel rat membrane molecule that plays a possible role in macrophage suppression of antigen-induced T-cell responses. These antibodies react with most mature hematopoietic cells and their bone-marrow precursors, vascular endothelium and some connective tissue. The OX-45 antigens were purified from brain (mainly endothelium) and spleen by immunoaffinity chromatography, and were found to be glycoproteins with apparent Mr 43,000 and 45,000, respectively, as determined by SDS-PAGE analysis. The amino acid compositions of the two preparations were very similar but with no distinguishing features. The broad pattern of distribution was not the result of fortuitous cross-reaction of the MAbs as a single N-terminal sequence was obtained from mixed spleen populations of cells. Carbohydrate compositions of the brain and spleen molecules differed both in absolute amount (22 and 41% by weight, respectively) and in the ratios of various saccharides reflecting overall differences in the patterns of glycosylation between the two tissues. MRC OX-45 IgG showed an heterogeneity in the Mr of its H chain due to the attachment, in some molecules, of carbohydrate structures to the Fd fragment.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Sep
|
pubmed:issn |
0161-5890
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pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
23
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pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
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pubmed:pagination |
983-90
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:3537734-Animals,
pubmed-meshheading:3537734-Antigens, Surface,
pubmed-meshheading:3537734-Brain,
pubmed-meshheading:3537734-Electrophoresis, Polyacrylamide Gel,
pubmed-meshheading:3537734-Endothelium,
pubmed-meshheading:3537734-Glycoproteins,
pubmed-meshheading:3537734-Hematopoietic System,
pubmed-meshheading:3537734-Immunoenzyme Techniques,
pubmed-meshheading:3537734-Leukocytes,
pubmed-meshheading:3537734-Membrane Proteins,
pubmed-meshheading:3537734-Molecular Weight,
pubmed-meshheading:3537734-Rats,
pubmed-meshheading:3537734-Rats, Inbred Strains,
pubmed-meshheading:3537734-Spleen
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pubmed:year |
1986
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pubmed:articleTitle |
MRC OX-45 antigen: a leucocyte/endothelium rat membrane glycoprotein of 45,000 molecular weight.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|