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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
24
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pubmed:dateCreated |
1983-3-11
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pubmed:abstractText |
Addition of the chemically synthesized proalbumin hexapeptide in a concentration of 110 micro M to the medium of isolated rat hepatocytes decreased net albumin synthesis by 12%. The synthesis of other secretory proteins was not altered. A weaker inhibitory effect on albumin synthesis was found for a tetrapeptide, a possible degradation product of the proalbumin hexapeptide. For the uptake of the hexa- and tetrapeptide into the cells, bovine serum albumin is required. In a reticulocyte and in a wheat germ cell-free system a propeptide concentration of 600 micro M inhibited albumin synthesis by 50%, whereas total protein synthesis was inhibited by 19% only, and the synthesis of alpha 1-antitrypsin was not inhibited. These results suggest that the synthesis of preproalbumin is regulated by a feedback mechanism with its propeptide as inhibitor.
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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 |
0006-2960
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
23
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pubmed:volume |
21
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
6053-9
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:7150542-Animals,
pubmed-meshheading:7150542-Cell-Free System,
pubmed-meshheading:7150542-Feedback,
pubmed-meshheading:7150542-Kinetics,
pubmed-meshheading:7150542-Liver,
pubmed-meshheading:7150542-Male,
pubmed-meshheading:7150542-Peptide Fragments,
pubmed-meshheading:7150542-Plants,
pubmed-meshheading:7150542-Polyribosomes,
pubmed-meshheading:7150542-Prealbumin,
pubmed-meshheading:7150542-Protein Biosynthesis,
pubmed-meshheading:7150542-Rats,
pubmed-meshheading:7150542-Rats, Inbred Strains,
pubmed-meshheading:7150542-Reticulocytes,
pubmed-meshheading:7150542-Serum Albumin,
pubmed-meshheading:7150542-Triticum
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pubmed:year |
1982
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pubmed:articleTitle |
Hexa- and pentapeptide extension of proalbumin: feedback inhibition of albumin synthesis by its propeptide in isolated hepatocytes and in the cell-free system.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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