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XB-ART-28767
Nucleic Acids Res 1986 Feb 11;143:1379-91.
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Nucleotide sequence of the chicken 5-aminolevulinate synthase gene.

Maguire DJ , Day AR , Borthwick IA , Srivastava G , Wigley PL , May BK , Elliott WH .


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5-Aminolevulinate synthase, the first and rate-controlling enzyme of heme biosynthesis, is regulated in the liver by the end-product heme. To study this negative control mechanism, we have isolated the chicken gene for ALA-synthase and determined the nucleotide sequence. The structural gene is 6.9 kb long and contains 10 exons. The transcriptional start site for ALA-synthase was determined by primer extension analysis. A fragment of 291 bp from the 5' flanking region including 34 bp of the first exon shows promoter activity when introduced upstream of a chicken histone H2B gene and injected into the nuclei of Xenopus laevis oocytes.

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Species referenced: Xenopus laevis
Genes referenced: h2bc21

References [+] :
Baty, Mutational dissection of the 21 bp repeat region of the SV40 early promoter reveals that it contains overlapping elements of the early-early and late-early promoters. 1984, Pubmed