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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1993-8-3
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pubmed:abstractText |
Regulation of CTP:choline-phosphate cytidylyltransferase activity was studied in regenerating rat liver. The formation of phosphatidylcholine from [14C]choline in hepatocytes isolated from regenerating liver at 22 h after surgery was increased 1.9-fold when compared with hepatocytes from sham-operated animals. This effect was accompanied by a 1.4-fold increase in cytosolic cytidylyltransferase activity as well as by a 1.5-fold increase in the amount of immunoreactive cytidylyltransferase protein, and a 1.7-fold increase in [35S]methionine incorporation into cytidylyltransferase protein. Northern blot analysis of cytidylyltransferase mRNA showed two signals at 1.5 and 5.0 kb. Partial hepatectomy caused a significant 2-3-fold increase in the 1.5-kb and 5.0-kb messengers at 12 h after surgery. During the next 10 h after partial hepatectomy cytidylyltransferase mRNA levels slightly decreased, although they were still elevated in comparison with sham-operated rats 20-22 h after surgery. In contrast to the elevated cytidylyltransferase mRNA levels, the amount of acetyl-CoA carboxylase mRNA did not increase between 12 and 22 h after surgery, which is in line with the unchanged activity of this enzyme. In conclusion, our data demonstrate that in regenerating liver phosphatidylcholine biosynthesis and cytidylyltransferase activity are regulated at a pretranslational level.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Choline-Phosphate...,
http://linkedlifedata.com/resource/pubmed/chemical/Isoenzymes,
http://linkedlifedata.com/resource/pubmed/chemical/Nucleotidyltransferases,
http://linkedlifedata.com/resource/pubmed/chemical/Phosphatidylcholines,
http://linkedlifedata.com/resource/pubmed/chemical/RNA, Messenger
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pubmed:status |
MEDLINE
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pubmed:month |
Jun
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pubmed:issn |
0014-2956
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
15
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pubmed:volume |
214
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
927-33
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pubmed:dateRevised |
2007-7-23
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pubmed:meshHeading |
pubmed-meshheading:8391439-Animals,
pubmed-meshheading:8391439-Choline-Phosphate Cytidylyltransferase,
pubmed-meshheading:8391439-Cytosol,
pubmed-meshheading:8391439-Gene Expression Regulation,
pubmed-meshheading:8391439-Hepatectomy,
pubmed-meshheading:8391439-Isoenzymes,
pubmed-meshheading:8391439-Liver,
pubmed-meshheading:8391439-Liver Regeneration,
pubmed-meshheading:8391439-Male,
pubmed-meshheading:8391439-Nucleotidyltransferases,
pubmed-meshheading:8391439-Phosphatidylcholines,
pubmed-meshheading:8391439-RNA, Messenger,
pubmed-meshheading:8391439-Rats,
pubmed-meshheading:8391439-Rats, Wistar
|
pubmed:year |
1993
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pubmed:articleTitle |
Evidence that CTP:choline-phosphate cytidylyltransferase is regulated at a pretranslational level in rat liver after partial hepatectomy.
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pubmed:affiliation |
Laboratory of Veterinary Biochemistry, Utrecht University, The Netherlands.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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