PlantRegMap/PlantTFDB v5.0
Plant Transcription Factor Database
Previous version: v3.0 v4.0
Theobroma cacao
LBD Family
Species TF ID Description
Thecc1EG000560t1LBD family protein
Thecc1EG000766t1LBD family protein
Thecc1EG003548t1LBD family protein
Thecc1EG004103t1LBD family protein
Thecc1EG004106t1LBD family protein
Thecc1EG005120t1LBD family protein
Thecc1EG005496t1LBD family protein
Thecc1EG005497t1LBD family protein
Thecc1EG007211t1LBD family protein
Thecc1EG008462t1LBD family protein
Thecc1EG009888t1LBD family protein
Thecc1EG012190t1LBD family protein
Thecc1EG012338t1LBD family protein
Thecc1EG016952t1LBD family protein
Thecc1EG019459t1LBD family protein
Thecc1EG024217t1LBD family protein
Thecc1EG025849t1LBD family protein
Thecc1EG029050t1LBD family protein
Thecc1EG029052t1LBD family protein
Thecc1EG029315t1LBD family protein
Thecc1EG029315t2LBD family protein
Thecc1EG029774t1LBD family protein
Thecc1EG030184t1LBD family protein
Thecc1EG032557t1LBD family protein
Thecc1EG034722t1LBD family protein
Thecc1EG035123t1LBD family protein
Thecc1EG037293t1LBD family protein
Thecc1EG037650t1LBD family protein
Thecc1EG041094t1LBD family protein
Thecc1EG042212t1LBD family protein
Thecc1EG042262t1LBD family protein
Thecc1EG042447t1LBD family protein
Thecc1EG042466t1LBD family protein
Thecc1EG042730t1LBD family protein
Thecc1EG043081t1LBD family protein
Thecc1EG045438t1LBD 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