Gene cloning and function analysis of ABP9 protein which specifically binds to ABRE2 motif of maize Cat1 gene

被引：48

作者：

Wang, L ^{[1
]}

Zhao, J ^{[1
]}

Fan, YL ^{[1
]}

机构：

[1] Chinese Acad Agr Sci, Biotechnol Res Inst, Beijing 100081, Peoples R China

来源：

CHINESE SCIENCE BULLETIN | 2002年 / 47卷 / 22期

关键词：

maize; ABRE; ABP; transcription factor; function analysis;

D O I：

10.1360/02tb9409

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 [理学]; 0710 [生物学]; 09 [农学];

摘要：

A cDNA library was constructed using mRNA extracted from 17 days post-pollination (dpp) maize embryos and was screened by employing a yeast one-hybrid system for proteins specifically interacting with ABRE2 motif of maize Cat1 gene. Three truncated overlapping positive clones designated ABP9 were obtained and the full-length cDNA was isolated by 5' RACE. Searching the database revealed that ABP9 protein belongs to a bZIP-type transcription factor family. ABP9 protein specifically binds to. ABRE2 motif and activates the expression of downstream reporter gene in yeast cells. Our results strongly suggest that the ABP9 protein functions as a transcription activator.

引用

页码：1871 / 1875

页数：5

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