Functional characterization of a peroxisome proliferator response-element located in the intron 3 of rat peroxisomal thiolase B gene

被引:27
作者
Hansmannel, F
Clémencet, MC
Le Jossic-Corcos, C
Osumi, T
Latruffe, N
Nicolas-Francés, V
机构
[1] Univ Bourgogne, LBMC, GDR 2583, CNRS, F-21000 Dijon, France
[2] Himeji Inst Technol, Grad Sch Sci, Dept Life Sci, Kamigori, Hyogo 6781297, Japan
基金
日本学术振兴会;
关键词
peroxisome; fatty acid beta oxidation; thiolase; peroxisome proliferator activated receptor alpha;
D O I
10.1016/j.bbrc.2003.09.185
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Expression of the rat peroxisomal 3-ketoacyl-CoA thiolase gene B is induced by peroxisome proliferators. Although a sequence element like a peroxisome proliferator-activated receptor (PPAR)-binding site is located in the promoter region of this gene, we previously found that this element is competent for the activation by hepatocyte nuclear factor-4, but not functional with PPARalpha. We describe here a new peroxisome proliferator-response element located in the intron 3 (+1422/+1434) that binds in vitro the PPARalpha/retinoid X receptor a heterodimer and confers the induction by PPARalpha in transfection assays. We propose a model of regulation of the rat thiolase B gene involving those elements in the promoter and intron 3. (C) 2003 Elsevier Inc. All rights reserved.
引用
收藏
页码:149 / 155
页数:7
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