Xenobiotic microsomal epoxide hydrolase: 5′ sequence of the human gene

Neil M. Wilson, Curtis J. Omiecinski

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

A cDNA for human microsomal epoxide hydrolase (mEH) was used to isolate genomic clones representing the 5′ portion of the corresponding human gene. A total of 1034 bases of mEH gene sequence were obtained that included exon 1 and 5′ flanking information. In contrast to the structure reported for the rat mEH gene (Falany et al. (1987) J. Biol. Chem. 262, 5924-5930), the human mEH gene lacked at CAAT box, but did contain a high-affinity CTF binding site at position -278 and an SV40 core enhancer element at position -525. TATA boxes were identified at positions -32 and -29 for the human and rat genes, respectively. Sequence comparisons between 5′ flanking regions of the human and rat mEH genes demonstrated 47% homology, considerably less than the 83% conservation observed in the cDNA coding areas. Primer extension experiments localized the transcription initiation site of the human gene to a position 116 bases 5′ from the analogous site in the rat mEH gene.

Original languageEnglish (US)
Pages (from-to)357-358
Number of pages2
JournalBBA - Gene Structure and Expression
Volume1008
Issue number3
DOIs
StatePublished - Aug 14 1989

All Science Journal Classification (ASJC) codes

  • Structural Biology
  • Biophysics
  • Biochemistry
  • Genetics

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