rdf:type |
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lifeskim:mentions |
|
pubmed:issue |
11
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pubmed:dateCreated |
1977-11-30
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pubmed:abstractText |
Homogenates of the liver of female rats obtained 2 or 7 days or 3 months after the i.v. injection of 7,12-dimethylbenz(a)anthracene were used to prepare ribosomes and postmicrosomal supernatant fractions and to prepare 0.5 M KCl salt wash fractions of the 40 S ribosomal subunits. The activity of the ribosomes was unchanged by 7,12-dimethylbenz(a)anthracene. The activity of the supernatant preparation, which contained limiting amounts of Elongation Factor 1 relative to Elongation Factor 2, in peptide synthesis was significantly increased 2 days not 7 days after the injection. Evidence was obtained that this increase was due to increased activity in binding phenylalanyl transfer RNA. The factor-dependent binding of methionyl transfer RNAfMet to control rat liver ribosomes was also markedly increased 2 days but not 7 days after the injection. The liver of animals that bore mammary tumors 3 months after 7,12-dimethylbenz(a)anthracene injection also showed an increase in binding both of the aminoacyl transfer RNA species. The results are discussed in relation to the induction of liver drug-metabolizing enzymes and to liver regeneration.
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pubmed:language |
eng
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pubmed:journal |
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pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/9,10-Dimethyl-1,2-benzanthracene,
http://linkedlifedata.com/resource/pubmed/chemical/Benz(a)Anthracenes,
http://linkedlifedata.com/resource/pubmed/chemical/DDT,
http://linkedlifedata.com/resource/pubmed/chemical/Methionine,
http://linkedlifedata.com/resource/pubmed/chemical/Peptide Elongation Factors,
http://linkedlifedata.com/resource/pubmed/chemical/Peptide Initiation Factors,
http://linkedlifedata.com/resource/pubmed/chemical/Phenylalanine,
http://linkedlifedata.com/resource/pubmed/chemical/RNA, Transfer, Amino Acyl
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pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
0008-5472
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pubmed:author |
|
pubmed:issnType |
Print
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pubmed:volume |
37
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
4220-7
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:409493-9,10-Dimethyl-1,2-benzanthracene,
pubmed-meshheading:409493-Animals,
pubmed-meshheading:409493-Benz(a)Anthracenes,
pubmed-meshheading:409493-DDT,
pubmed-meshheading:409493-Female,
pubmed-meshheading:409493-Liver,
pubmed-meshheading:409493-Mammary Neoplasms, Experimental,
pubmed-meshheading:409493-Methionine,
pubmed-meshheading:409493-Peptide Biosynthesis,
pubmed-meshheading:409493-Peptide Elongation Factors,
pubmed-meshheading:409493-Peptide Initiation Factors,
pubmed-meshheading:409493-Phenylalanine,
pubmed-meshheading:409493-RNA, Transfer, Amino Acyl,
pubmed-meshheading:409493-Rats,
pubmed-meshheading:409493-Ribosomes
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pubmed:year |
1977
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pubmed:articleTitle |
Effect of 7,12-dimethylbenz(a)anthracene on the binding of aminoacyl transfer RNA in rat liver.
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pubmed:publicationType |
Journal Article,
In Vitro
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