Cloning and characterization of two EREBP transcription factors from cotton (Gossypium hirsutum L.)

文献类型： 外文期刊

第一作者： Hongying Duan

作者： Hongying Duan;Fuguang Li;Xudong Wu;Dongmei Ma;Mao Wang;Yuxia Hou

作者机构：

关键词： AP2/EREBP domain;EREBP protein;GCC-box;GhEREB2;GhEREB3;cotton

期刊名称：BIOCHEMISTRY-MOSCOW （ 影响因子：2.487； 五年影响因子：2.57 ）

ISSN： 0006-2979

年卷期： 2006 年 71 卷 3 期

页码：

收录情况： SCI

摘要： In this research, two EREBP (ethylene response element binding protein) genes were isolated by the yeast one-hybrid system, named GhEREB2 and GhEREB3, and both have one intron in their coding regions. The deduced amino acid sequences of GhEREB2 and GhEREB3 have some typical features of transcription factors, one potential basic nuclear-localization signal, one possible acidic activation domain, and one conserved DNA binding domain, and they show high similarity, especially in the DNA-binding domain. GhEREB2 was expressed in roots, stems, and leaves (low levels), but GhEREB3 was only expressed in leaves. Furthermore, the expression of GhEREB2 and GhEREB3 was induced by ethylene and jasmonic acid. In addition, GhEREB2 and GhEREB3 proteins specifically bind to a GCC-box and strongly activate the expression of HIS3 and LacZ reporter genes in yeast. Collectively, these results suggest that GhEREB2 and GhEREB3 might be involved as positive transcription factors in biotic stress signal transduction pathways.

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