Chicken Ovalbumin Promoter Is Demethylated upon Expression in the Regions Specifically Involved in Estrogen-Responsiveness

DOI Web Site Web Site 被引用文献2件 参考文献38件
  • MORSHED Mahboob
    Department of Biotechnology, Graduate School of Engineering, Nagoya University
  • SANO Shusuke
    Department of Biotechnology, Graduate School of Engineering, Nagoya University
  • NISHIMIYA Daisuke
    Department of Biotechnology, Graduate School of Engineering, Nagoya University
  • ANDO Munetoshi
    Department of Biotechnology, Graduate School of Engineering, Nagoya University
  • NISHIJIMA Ken-ichi
    Department of Biotechnology, Graduate School of Engineering, Nagoya University
  • IIJIMA Shinji
    Department of Biotechnology, Graduate School of Engineering, Nagoya University

この論文をさがす

抄録

Here we report the methylation status of the chicken ovalbumin promoter. Genomic DNA of oviduct from immature chickens and laying hens was analyzed through bisulfite genomic sequencing. In the ovalbumin control locus up to the 6 kb upstream region, CpG sites were methylated in immature chickens, except for several sites, and almost all CpGs residing in DNase I hypersensitive sites I, II, and III, but not IV, were selectively unmethylated in ovalbumin expressing chickens. Chromatin immunoprecipitation assays showed that the ovalbumin control region was associated with acetylated histone H3 but not with dimethylated histone H3 at Lys 27. These results demonstrate that DNA demethylation was restricted to short DNA regions of DNase I hypersensitive sites, especially to those which participated in estrogen-responsiveness, even when cells expressed extremely high levels of ovalbumin and these sites were associated with acetylated histones.

収録刊行物

被引用文献 (2)*注記

もっと見る

参考文献 (38)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ