PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Aethionema arabicum
LBD Family
Species TF ID Description
AA10G00230LBD family protein
AA10G00357LBD family protein
AA13G00092LBD family protein
AA21G00041LBD family protein
AA21G00280LBD family protein
AA21G00281LBD family protein
AA22G00035LBD family protein
AA23G00026LBD family protein
AA26G00101LBD family protein
AA29G00228LBD family protein
AA30G00207LBD family protein
AA30G00265LBD family protein
AA31G00681LBD family protein
AA32G00019LBD family protein
AA32G00599LBD family protein
AA32G00667LBD family protein
AA32G00683LBD family protein
AA32G00863LBD family protein
AA37G00096LBD family protein
AA53G00004LBD family protein
AA53G00875LBD family protein
AA53G01013LBD family protein
AA53G01156LBD family protein
AA5G00017LBD family protein
AA60G00005LBD family protein
AA61G00253LBD family protein
AA63G00034LBD family protein
AA8G00037LBD family protein
AA96G00058LBD family protein
AA9G00085LBD family protein
LBD Family Introduction

The in vitro DNA-binding and heterologous transcriptional activation studies presented here indicate that the LBD protein family represents a new class of DNA-binding transcription factors that recognize the cis-element GCGGCG. The DNA-binding activity is present within the LOB domain, which is conserved throughout the 43 Arabidopsis family members as well as LBD proteins in other plant species.

the LBD genes encode a novel class of DNA-binding transcription factors. Post-translational regulation of transcription factors is often crucial for control of gene expression. In our study, we demonstrate that members of the basic helix-loop-helix (bHLH) family of transcription factors are capable of interacting with LOB. The expression patterns of bHLH048 and LOB overlap at lateral organ boundaries. Interestingly, the interaction of bHLH048 with LOB results in reduced affinity of LOB for the consensus DNA motif. Thus, our studies suggest that bHLH048 post-translationally regulates the function of LOB at lateral organ boundaries.

Aman Husbands, Elizabeth M. Bell, Bin Shuai, Harley M.S. Smith, and Patricia S. Springer.
LATERAL ORGAN BOUNDARIES defines a new family of DNA-binding transcription factors and can interact with specific bHLH proteins.
Nucleic Acids Res, 2007. 35(19): p. 6663-71.
PMID: 17913740