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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1986-4-28
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pubmed:abstractText |
Membrane immunoglobulin receptors on chicken B-cells have been shown to display a heterogeneity with respect to interchain disulfide linkages. One fraction of the surface Ig (sIg) appears to display the traditional H2-L2 linkage. We also present evidence that this Ig is covalently bound via a disulfide linkage to actin. In this instance, the isolated Ig heavy chain, after reduction, has a mol. wt of 80 K. Perhaps more significantly, we show that another fraction of the sIg exists in a highly aggregated from that is stabilized by disulfide linkages. In contrast to the sIg found in the H2-L2 configuration, there is no evidence of actin within the aggregates and the sIg heavy chains isolated from these aggregates display a slightly faster mobility on SDS-PAGE under reducing conditions, running at about 77K. Furthermore, it appears that the Ig within the large aggregates may have a higher avidity with respect to antigen binding, and so this Ig structure may be the more relevant to antigen-induced receptor-mediated signaling in the B-cell.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Jan
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pubmed:issn |
0161-5890
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
23
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1-13
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:3083239-Animals,
pubmed-meshheading:3083239-B-Lymphocytes,
pubmed-meshheading:3083239-Chickens,
pubmed-meshheading:3083239-Chromatography, Affinity,
pubmed-meshheading:3083239-Disulfides,
pubmed-meshheading:3083239-Electrophoresis, Polyacrylamide Gel,
pubmed-meshheading:3083239-Immunoglobulin Heavy Chains,
pubmed-meshheading:3083239-Molecular Weight,
pubmed-meshheading:3083239-Receptors, Antigen, B-Cell,
pubmed-meshheading:3083239-Spleen
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pubmed:year |
1986
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pubmed:articleTitle |
Disulfide linkages between antigen-binding receptors on chicken B-lymphocytes.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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