title: Isolation of a cytochrome P-450e gene variant and characterization of its 5' flanking sequences.
abstract: A cytochrome P-450e gene variant has been isolated from the rat liver genomic library. It is a typical e gene clone but unique in having b-like single base substitutions at specific sites in the 5' flanking region. It also appears to have certain additional restriction sites in the introns. When compared with the cytochrome P-450b gene, the e gene has some of the repetitive motifs interrupted in the 5' flanking region. In addition, this region is characterized by the presence of alternating pyrimidine-purine stretch, steroid hormone regulatory elements, consensus eukaryotic enhancer sequence and sequences involved in general amino acid regulation.
mesh_terms: D000818:Animals; D001483:Base Sequence; D002874:Chromosome Mapping; D003001:Cloning, Molecular; D003577:Cytochrome P-450 Enzyme System / Q000235:genetics*; D004247:DNA / Q000235:genetics; D005796:Genes; D014644:Genetic Variation; D007438:Introns; D051381:Rats; D012091:Repetitive Sequences, Nucleic Acid
chemical_list: D004247:DNA; D003577:Cytochrome P-450 Enzyme System