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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5
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pubmed:dateCreated |
1987-3-30
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pubmed:abstractText |
High resolution gradient sodium dodecyl sulfate-polyacrylamide gel electrophoresis, cell-free translation, and elastin-specific antibodies were used to identify three tropoelastin isoforms secreted by bovine tissue and cells. Tropoelastin isolated from nuchal ligament and from conditioned culture medium or cell-matrix extracts of ligament fibroblasts and auricular chondrocytes resolved as three distinct bands on sodium dodecyl sulfate-polyacrylamide gel electrophoresis with molecular weights of approximately 67,500 (tropoelastin I), 65,000 (tropoelastin II), and 62,000 (tropoelastin III). Three tropoelastin polypeptides with molecular mass 2-3 kDa higher than their corresponding tissue forms were also evident in cell-free translation products of ligamentum nuchae RNA, suggesting that each tropoelastin species is encoded by a unique mRNA. The presence of cysteine in all three tropoelastin isoforms was demonstrated by the incorporation of [35S]cysteine into newly synthesized tropoelastin polypeptides and by immunoreactivity with an antibody raised against a synthetic peptide that defines the cysteine-containing carboxyl-terminal region of tropoelastin. Immunological co-localization of the carboxyl-terminal antibody with insoluble elastin in lung vasculature and parenchyma suggests that intact tropoelastin and not a processed form is incorporated into the elastin fiber.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Amino Acids,
http://linkedlifedata.com/resource/pubmed/chemical/Cysteine,
http://linkedlifedata.com/resource/pubmed/chemical/Elastin,
http://linkedlifedata.com/resource/pubmed/chemical/Epitopes,
http://linkedlifedata.com/resource/pubmed/chemical/RNA,
http://linkedlifedata.com/resource/pubmed/chemical/Tropoelastin
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pubmed:status |
MEDLINE
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pubmed:month |
Feb
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pubmed:issn |
0021-9258
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
15
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pubmed:volume |
262
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
2244-9
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:2434478-Amino Acids,
pubmed-meshheading:2434478-Animals,
pubmed-meshheading:2434478-Cattle,
pubmed-meshheading:2434478-Cell-Free System,
pubmed-meshheading:2434478-Cells, Cultured,
pubmed-meshheading:2434478-Chromatography, High Pressure Liquid,
pubmed-meshheading:2434478-Cysteine,
pubmed-meshheading:2434478-Elastin,
pubmed-meshheading:2434478-Electrophoresis, Polyacrylamide Gel,
pubmed-meshheading:2434478-Epitopes,
pubmed-meshheading:2434478-Lung,
pubmed-meshheading:2434478-Molecular Weight,
pubmed-meshheading:2434478-RNA,
pubmed-meshheading:2434478-Tropoelastin
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pubmed:year |
1987
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pubmed:articleTitle |
Identification of multiple tropoelastins secreted by bovine cells.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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