RRC ID 30742
Author Shin DH, Choi M, Kim K, Bang G, Cho M, Choi SB, Choi G, Park YI.
Title HY5 regulates anthocyanin biosynthesis by inducing the transcriptional activation of the MYB75/PAP1 transcription factor in Arabidopsis.
Journal FEBS Lett
Abstract Several positive transcription factors regulate Arabidopsis anthocyanin biosynthesis. HY5, a component of light-signaling pathways, and PAP1, an R2R3-MYB transcription factor, share common regulatory targets on anthocyanin biosynthesis genes. The epistatic interactions between the two transcription factors are currently unknown. To address this problem, we analyzed crosses between hy5 and pap1 mutants (hy5pap1) or pap1D overexpressors (hy5pap1D), performed chromatin immunoprecipitation-qPCR, and determined the PAP1 promoter region through deletion analysis. The results show that HY5 regulates PAP1 expression via direct binding to G- and ACE-boxes in the promoter region, which suggests bifurcate regulation of anthocyanin biosynthesis by HY5 via transcriptional activation of PAP1.
Volume 587(10)
Pages 1543-7
Published 2013-5-21
DOI 10.1016/j.febslet.2013.03.037
PII S0014-5793(13)00266-4
PMID 23583450
MeSH Anthocyanins / analysis Anthocyanins / biosynthesis* Arabidopsis / genetics* Arabidopsis / growth & development Arabidopsis / metabolism* Arabidopsis Proteins / genetics* Arabidopsis Proteins / metabolism Arabidopsis Proteins / physiology* Basic-Leucine Zipper Transcription Factors / metabolism Basic-Leucine Zipper Transcription Factors / physiology* Gene Expression Regulation, Plant Nuclear Proteins / metabolism Nuclear Proteins / physiology* Pancreatitis-Associated Proteins Plants, Genetically Modified Promoter Regions, Genetic Protein Binding Seedlings / genetics Seedlings / growth & development Seedlings / metabolism Transcription Factors / genetics* Transcription Factors / metabolism Transcriptional Activation Transformation, Genetic
IF 3.057
Times Cited 107
WOS Category BIOPHYSICS BIOCHEMISTRY & MOLECULAR BIOLOGY CELL BIOLOGY
Resource
Arabidopsis / Cultured plant cells, genes pst16228