LEUCINE-ZIPPER TYPE TRANSCRIPTION FACTORS OF WHEAT

被引：2

作者：

TABATA, T ^{[1
]}

机构：

[1] KYOTO UNIV,FAC SCI,DEPT BOT,KYOTO 606,JAPAN

来源：

BOTANICAL MAGAZINE-TOKYO | 1991年 / 104卷 / 1074期

关键词：

HBP-1A AND HBP-1B; HISTONE GENE; TRANS-ACTING FACTOR; LEUCINE ZIPPER;

D O I：

10.1007/BF02493257

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Sequence specific DNA-binding proteins play a significant role in transcriptional regulation. Wheat DNA-binding proteins, HBP-1a and HBP-1b, bind to the hexamer sequence of wheat histone gene promoters. Structural analyses of cDNAs encoding these proteins show that they belong to a leucine zipper class of transcription factors. They form homodimers but do not heterodimers between them. Although the hexamer sequence or its homologues exist in several plant genes, HBP-1a and -1b exhibited the highest binding affinity to the hexamer sequence in the histone gene promoters, suggesting that both DNA-binding proteins are involved in transcriptional regulation of wheat histone genes.

引用

页码：171 / 181

页数：11

共 34 条

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