Plant Transcription Factor Database
Previous version: v3.0
Gossypium hirsutum
BES1 Family
Species TF ID Description
Gh_A01G0360BES1 family protein
Gh_A03G1024BES1 family protein
Gh_A04G0814BES1 family protein
Gh_A05G1683BES1 family protein
Gh_A05G2217BES1 family protein
Gh_A06G1990BES1 family protein
Gh_A08G1175BES1 family protein
Gh_A10G0312BES1 family protein
Gh_A11G0794BES1 family protein
Gh_A11G2598BES1 family protein
Gh_D01G0390BES1 family protein
Gh_D02G0939BES1 family protein
Gh_D04G1312BES1 family protein
Gh_D05G1874BES1 family protein
Gh_D05G2477BES1 family protein
Gh_D06G2134BES1 family protein
Gh_D08G1459BES1 family protein
Gh_D10G0318BES1 family protein
Gh_D11G0932BES1 family protein
Gh_D11G2965BES1 family protein
Gh_D12G1996BES1 family protein
Gh_Sca033106G01BES1 family protein
Gh_Sca122277G01BES1 family protein
Gh_Sca151434G01BES1 family protein
BES1 Family Introduction

Brassinosteroids (BRs) signal through a plasma membrane-localized receptor kinase to regulate plant growth and development. We showed previously that a novel protein, BES1(BRI1-EMS-SUPPRESSOR 1), accumulates in the nucleus in response to BRs, where it plays a role in BR-regulated gene expression; however, the mechanism by which BES1 regulates gene expression is unknown. In this study, we dissect BES1 subdomains and establish that BES1 is a transcription factor that binds to and activates BR target gene promoters both in vitro and in vivo. BES1 interacts with a basic helix-loop-helix protein, BIM1, to synergistically bind to E box (CANNTG) sequences present in many BR-induced promoters. Loss-of-function and gain-of-function mutants of BIM1 and its close family members display BR response phenotypes. Thus, BES1 defines a new class of plant-specific transcription factors that cooperate with transcription factors such as BIM1 to regulate BR-induced genes.

Yin Y, Vafeados D, Tao Y, Yoshida S, Asami T, Chory J.
A new class of transcription factors mediates brassinosteroid-regulated gene expression in Arabidopsis.
Cell. 2005 Jan 28;120(2):249-59.
PMID: 15680330