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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
7
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pubmed:dateCreated |
1989-10-12
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pubmed:abstractText |
A triacylglycerol lipase was isolated from the culture medium of HepG2 human hepatoma cells and its properties were compared to hepatic triglyceride lipase (H-TGL) from human postheparin plasma. The HepG2 cell enzyme bound to heparin-Sepharose, was eluted with 1 M NaCl and was not inhibited by 1 M salt. Western-blotting of the fractions from the heparin-Sepharose column with a monoclonal antibody prepared against postheparin plasma H-TGL and which binds to an epitope in the carboxyl-terminus of H-TGL gave a single immunoreactive protein band of 65 kDa. This finding of immunochemical identity was confirmed with polyclonal antibodies prepared against synthetic peptides of H-TGL corresponding to amino acid residues 82-94 near the amino-terminus and residues 468-477, the carboxyl-terminus of the enzyme. We conclude that HepG2 cells secrete a single triacylglycerol lipase with molecular weight properties and immunological characteristics identical to post-heparin plasma H-TGL.
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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:issn |
0024-3205
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
45
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
615-22
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pubmed:dateRevised |
2004-11-17
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pubmed:meshHeading |
pubmed-meshheading:2475734-Antibodies, Monoclonal,
pubmed-meshheading:2475734-Blotting, Western,
pubmed-meshheading:2475734-Carcinoma, Hepatocellular,
pubmed-meshheading:2475734-Epitopes,
pubmed-meshheading:2475734-Humans,
pubmed-meshheading:2475734-Immunoblotting,
pubmed-meshheading:2475734-Lipase,
pubmed-meshheading:2475734-Liver,
pubmed-meshheading:2475734-Liver Neoplasms,
pubmed-meshheading:2475734-Molecular Weight,
pubmed-meshheading:2475734-Precipitin Tests,
pubmed-meshheading:2475734-Tumor Cells, Cultured
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pubmed:year |
1989
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pubmed:articleTitle |
Human hepatoma (HepG2) cells secrete a single 65 K dalton triglyceride lipase immunologically identical to postheparin plasma hepatic lipase.
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pubmed:affiliation |
Merrell Dow Research Institute, Cincinnati, OH 45215.
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pubmed:publicationType |
Journal Article
|