PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Spinacia oleracea
LBD Family
Species TF ID Description
Sp_001670_kniy.t1LBD family protein
Sp_016100_hgze.t1LBD family protein
Sp_024640_csri.t1LBD family protein
Sp_024820_ycrm.t1LBD family protein
Sp_074520_sjsc.t1LBD family protein
Sp_080370_rfri.t1LBD family protein
Sp_089500_muxp.t1LBD family protein
Sp_089690_nwmr.t1LBD family protein
Sp_114870_heda.t1LBD family protein
Sp_126370_jrrz.t1LBD family protein
Sp_132280_cdhh.t1LBD family protein
Sp_148870_pnio.t1LBD family protein
Sp_152600_coqp.t1LBD family protein
Sp_161040_kfwm.t1LBD family protein
Sp_168810_zeap.t1LBD family protein
Sp_170200_ftdh.t1LBD family protein
Sp_190130_yqsr.t1LBD family protein
Sp_194400_fdur.t1LBD family protein
Sp_194940_gwyc.t1LBD family protein
Sp_209690_axnw.t1LBD 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