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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1991-8-30
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pubmed:abstractText |
Specific anti-calmodulin rabbit polyclonal and murine monoclonal antibodies have been produced with a thyroglobulin-linked peptide corresponding to amino acids 128-148 of bovine brain calmodulin. The monoclonal antibody is IgG-1 with kappa light chains. Both sets of antibodies recognize native vertebrate calmodulin, with the polyclonal antibody exhibiting an approximately fourfold higher sensitivity than the monoclonal antibody in a radioimmunoassay. The affinity of both polyclonal and monoclonal antibodies is approximately 2.5-fold higher for Ca(2+)-free calmodulin than for Ca(2+)-calmodulin. Other selected members of the calmodulin family (S100, troponin, and parvalbumin) do not exhibit significant cross-reactivity with the monoclonal antibody. Troponin and S100 beta displace some 125I-calmodulin from the polyclonal antibody, but require at least 900-fold excess concentration. The monoclonal antibody recognizes intact vertebrate calmodulin in solution and also on solid-phase. In addition, plant calmodulin and some forms of post-translationally modified calmodulin (phosphorylated or glycated) bind the monoclonal antibody. The affinity of the monoclonal antibody is approximately 5 x 10(8) liters/mol determined by displacement of 125I-calmodulin. On dot blotting the sensitivity for vertebrate calmodulin is 50 pg. The epitope for the monoclonal antibody is in the carboxyl terminal region (residues 107-148) of calmodulin. This highly specific anti-calmodulin monoclonal antibody should be a useful reagent in elucidating the mechanism by which calmodulin regulates intracellular metabolism.
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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 |
May
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pubmed:issn |
0003-2697
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
1
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pubmed:volume |
194
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
369-77
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:1862939-Animals,
pubmed-meshheading:1862939-Antibodies,
pubmed-meshheading:1862939-Antibodies, Monoclonal,
pubmed-meshheading:1862939-Antibody Specificity,
pubmed-meshheading:1862939-Calcium,
pubmed-meshheading:1862939-Calmodulin,
pubmed-meshheading:1862939-Cattle,
pubmed-meshheading:1862939-Protein Processing, Post-Translational,
pubmed-meshheading:1862939-Rabbits,
pubmed-meshheading:1862939-Radioimmunoassay
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pubmed:year |
1991
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pubmed:articleTitle |
Monoclonal antibody to calmodulin: development, characterization, and comparison with polyclonal anti-calmodulin antibodies.
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pubmed:affiliation |
Department of Pathology, Brigham & Women's Hospital, Boston, Massachusetts.
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pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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