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Structure of the human renin gene.

By H Miyazaki, A Fukamizu, S Hirose, T Hayashi, H Hori, H Ohkubo, S Nakanishi and K Murakami


The human renin gene was isolated from a Charon 4A human genomic library and characterized. The gene spans about 11.7 kilobases and consists of 10 exons and 9 introns that map at points that could be variable surface loops of the enzyme. The complete coding regions, the 5'- and 3'-flanking regions, and the exon-intron boundaries were sequenced. The active site aspartyl residues Asp-38 and Asp-226 are encoded by the third and eighth exons, respectively. The extra three amino acids (Asp-165, Ser-166, Glu-167) that are not present in mouse renin are encoded by the separate sixth exon, an exon as small as 9 nucleotides. The positions of the introns are in remarkable agreement with those in the human pepsin gene, supporting the view that the genes coding for aspartyl proteinases have arisen as the result of duplication of a common ancestral gene. As in most eukaryotic genes, the putative T-A-T-A and C-A-A-T sequences, which may play a role in the initiation of gene transcription, are found in the vicinity of -29 and -51 nucleotides of the cap site. Further upstream, at nucleotides -456 to -451, is located the hexanucleotide T-G-T-T-C-T, which has recently been suggested as a binding site for the glucocorticoid receptor. In the 3'-flanking region, there is the conserved hexanucleotide sequence A-A-T-A-A-A, thought to be necessary for polyadenylylation. Blot-hybridization analyses of the isolated gene clone and the total cellular DNA after digestion with restriction enzymes revealed that human renin is encoded by a single gene

Topics: Research Article
Year: 1984
DOI identifier: 10.1073/pnas.81.19.5999
OAI identifier:
Provided by: PubMed Central
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