Plant Transcription Factor Database
Previous version: v3.0
Marchantia polymorpha
LBD Family
Species TF ID Description
Mapoly0004s0047.1.pLBD family protein
Mapoly0008s0060.1.pLBD family protein
Mapoly0009s0166.1.pLBD family protein
Mapoly0011s0037.1.pLBD family protein
Mapoly0046s0060.1.pLBD family protein
Mapoly0050s0090.1.pLBD family protein
Mapoly0051s0062.1.pLBD family protein
Mapoly0058s0090.1.pLBD family protein
Mapoly0060s0092.1.pLBD family protein
Mapoly0080s0037.1.pLBD family protein
Mapoly0084s0032.1.pLBD family protein
Mapoly0093s0018.1.pLBD family protein
Mapoly0093s0069.1.pLBD family protein
Mapoly0097s0062.1.pLBD family protein
Mapoly0152s0027.1.pLBD family protein
Mapoly0153s0039.1.pLBD family protein
Mapoly0173s0030.1.pLBD family protein
Mapoly0176s0008.1.pLBD family protein
Mapoly0721s0001.1.pLBD family protein
Mapoly0817s0001.1.pLBD family protein
Mapoly1185s0001.1.pLBD family protein
Mapoly1803s0001.1.pLBD family protein
Mapoly3661s0001.1.pLBD 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