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Genomic organization of the human amyloid beta-protein precursor gene and its promotor. Yoshiyuki SAKAKI 1 1Research Laboratory for Genetic Information, Kyushu University pp.403-408
Published Date 1990/6/10
DOI https://doi.org/10.11477/mf.1431900040
  • Abstract
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Amyloid β-protein (BP) deposited in Alzheimer brains is a cleavage product of a large precursor (BPP). The BPP gene encoded three types of mRNA products generated by alternative splicing two of which direct the domain of Kunitz-type serine-protease inhibitor (serpin). The human BPP gene consists of 18 exons and spans more than 170 kb. BP is encoded by the 16th and the 17th exons and the serpin domain by the 7th exon. The 7th and 8th introns seem to lack a typical branchpoint for splicing. This might related to the alternative splicing. The promoter of the BPP gene has some characteristics of those housekeeping genes and contains a number of possible methylation sites. No alteration of methylation pattern was, however, observed among tissues and between control and Alzheimer brains. We tested the roles of two possible activator protein-1 binding sites and a possible heat-shock element found within the promoter. Northern blotting showed that the transcription of the BPP gene was appar-ently induced by 12-O-tetradecanoylphorbol-13-acetate (phorbol derivative).


Copyright © 1990, Igaku-Shoin Ltd. All rights reserved.

基本情報

電子版ISSN 1882-1243 印刷版ISSN 0001-8724 医学書院

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