Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1984-5-11
pubmed:abstractText
A rat liver cDNA library was prepared from total polyribosomal poly(A)+ RNA extracted from phenobarbital-treated animals. A cDNA clone coding for a phenobarbital-inducible cytochrome P-450 (PB P-450) was identified by differential colony hybridization to cDNAs synthesized from liver poly(A)+RNAs isolated from phenobarbital-treated rats for positive selection and cDNAs from either untreated rats or beta-naphthoflavone-treated rats as negative controls, followed by hybrid-selected translation and analysis of the translation products by immunoprecipitation. As the cloning and screening strategies involve no prior enrichment for specific mRNAs, they also permit the identification of sequences coding for phenobarbital-induced proteins other than cytochromes P-450. This relatively straightforward approach is generally applicable to the molecular cloning of sequences coding for other inducible cytochromes P-450. Nucleic acid sequencing data indicated that the cloned PB P-450 cDNA codes for a cytochrome P-450 variant [designated P-450e(U.C.)] that is very similar, but not identical, to P-450e. Sequence analysis of the section of cDNA specifying the 3'-non-coding region of the mRNA revealed that it lacked the usual poly(A) addition site signal sequence but contained three inverted repeat structures. Solution hybridization analysis demonstrated that PB P-450 mRNA is increased 20-fold by phenobarbital treatment and decreased 3-fold by beta-naphthoflavone treatment.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0378-1119
pubmed:author
pubmed:issnType
Print
pubmed:volume
26
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
41-52
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1983
pubmed:articleTitle
Cloning and sequence analysis of a rat liver cDNA coding for a phenobarbital-inducible microheterogenous cytochrome P-450 variant: regulation of its messenger level by xenobiotics.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't