Age-related expression analysis of mouse liver nuclear protein binding to 3′-untranslated region of Period2 gene

Toshiyuki Hamada*, Kazuko Miyakawa, Hiroko Kushige, Shigenobu Shibata, Sumiko Kurachi

*この研究の対応する著者

研究成果: Article査読

抄録

In mammals, both circadian rhythm and aging play important roles in regulating time-dependent homeostasis. We previously discovered an age-related increase element binding protein, hnRNP A3, which binds to the 3′-untranslated region (UTR) of blood coagulation factor IX (FIX). Here, we describe other members of this protein family, hnRNP C and hnRNP H, which bind to the 3′-UTR of the mouse circadian clock gene Period 2 (mPer2). RNA electrophoretic mobility shift assays using a 32P-labeled Per2 RNA probe coupled with two-dimensional gel electrophoresis followed by MALDI-TOF/MS peptide mass fingerprint analysis was used to analyze these proteins. Western blotting suggested that the total expression of these proteins in mouse liver cell nuclei does not increase with age. Two-dimensional gel electrophoresis analysis of age-related protein expression showed that many isoforms of these proteins exist in the liver and that each protein exhibits a complex age-related expression pattern. These results suggest that many isoforms of proteins are regulated by different aging systems and that many age regulation systems function in the liver.

本文言語English
ページ(範囲)349-357
ページ数9
ジャーナルJournal of Physiological Sciences
65
4
DOI
出版ステータスPublished - 2015 7月 24

ASJC Scopus subject areas

  • 生理学

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