Plant Transcription Factor Database
Previous version: v3.0
Spirodela polyrhiza
LBD Family
Species TF ID Description
Spipo0G0041900LBD family protein
Spipo11G0029600LBD family protein
Spipo11G0057100LBD family protein
Spipo13G0016500LBD family protein
Spipo14G0001400LBD family protein
Spipo14G0042300LBD family protein
Spipo16G0005800LBD family protein
Spipo18G0031500LBD family protein
Spipo19G0011900LBD family protein
Spipo19G0012000LBD family protein
Spipo19G0027500LBD family protein
Spipo1G0094000LBD family protein
Spipo1G0094100LBD family protein
Spipo22G0039400LBD family protein
Spipo23G0032200LBD family protein
Spipo24G0006900LBD family protein
Spipo28G0022100LBD family protein
Spipo29G0016000LBD family protein
Spipo2G0009000LBD family protein
Spipo2G0050900LBD family protein
Spipo2G0051100LBD family protein
Spipo2G0051300LBD family protein
Spipo2G0051400LBD family protein
Spipo2G0051500LBD family protein
Spipo2G0051600LBD family protein
Spipo2G0051800LBD family protein
Spipo2G0097200LBD family protein
Spipo2G0120800LBD family protein
Spipo3G0001400LBD family protein
Spipo4G0084000LBD family protein
Spipo7G0016700LBD family protein
Spipo8G0061900LBD family protein
Spipo9G0028900LBD 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