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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
11
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pubmed:dateCreated |
1987-1-20
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pubmed:abstractText |
Cells from sea star (Asterias rubens) axial organs stimulated with trinitrophenyl (TNP) or fluoresceinyl-haptened polyacrylamide beads and subsequently stimulated in vitro with the same antigen produced and released a specific antibody-like protein which induced lysis of haptened sheep erythrocytes in the presence of serum complement. The anti-TNP antibody-like protein isolated by ammonium sulfate precipitation, gel filtration and affinity chromatography exhibited a single precipiting peak after crossed immunoelectrophoresis against rabbit antiserum to partially purified culture supernatant. The anti-TNP antibody-like protein gave a specific affinity precipitate in crossed affino-electrophoresis using a p-nitrobenzoyl-substituted gel. The analysis by sodium dodecyl sulfate-polyacrylamide gel electrophoresis under both reducing and nonreducing conditions evidenced a unique 30-kDa polypeptide chain. According to gel filtration experiments, the molecular weight of the major component isolated by affinity chromatography was about four times higher. Therefore, the antibody-like molecule could be a tetrameric protein devoid of any disulfide bond.
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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 |
Nov
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pubmed:issn |
0014-2980
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
16
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1325-30
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pubmed:dateRevised |
2003-11-14
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pubmed:meshHeading |
pubmed-meshheading:3096739-Animals,
pubmed-meshheading:3096739-Antigens,
pubmed-meshheading:3096739-Cells, Cultured,
pubmed-meshheading:3096739-Chromatography, Affinity,
pubmed-meshheading:3096739-Chromatography, Gel,
pubmed-meshheading:3096739-Haptens,
pubmed-meshheading:3096739-Immunodiffusion,
pubmed-meshheading:3096739-Invertebrate Hormones,
pubmed-meshheading:3096739-Lymphoid Tissue,
pubmed-meshheading:3096739-Starfish
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pubmed:year |
1986
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pubmed:articleTitle |
Purification of an antibody-like protein from the sea star Asterias rubens (L.).
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pubmed:publicationType |
Journal Article
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