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    FEBS Lett. 1990 Sep 3;269(2):345-9.

    Cloning of cDNA and genomic DNA for human cytochrome P-45011 beta.

    Kawamoto T, Mitsuuchi Y, Toda K, Miyahara K, Yokoyama Y, Nakao K, Hosoda K, Yamamoto Y, Imura H, Shizuta Y.

    Department of Medical Chemistry, Kochi Medical School, Japan.

    A full-length cDNA clone encoding steroid 11 beta-hydroxylase (P-45011 beta) has been isolated from a cDNA library derived from human adrenal tumor. The insert of the clone contains an open reading frame encoding a protein of 503 amino acid residues together with a 4 bp 5'-untranslated region and a 576 bp 3'-untranslated region to which a poly(A) tract is attached. The promoter region of the P-450(11) beta gene has also been isolated from a genomic library derived from human pre-B cells. It contains a TATA box, a putative cAMP-responsive element, several repeated sequences and two sequence elements similar to the consensus sequence for binding of AP-1. A transient expression assay in Y-1 adrenal tumor cells demonstrates that the promoter activity is remarkably enhanced by treatment of the cells with cAMP. In addition, analysis using deletion mutants containing various lengths of the 5'-flanking region of the gene suggests that several cis-acting elements participate in transcriptional regulation of human P-450(11) beta gene.

    PMID: 2401360 [PubMed - indexed for MEDLINE]

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