Plant Transcription Factor Database
Previous version: v3.0
Petunia axillaris
FAR1 Family
Species TF ID Description
Peaxi162Scf00001g00283.1FAR1 family protein
Peaxi162Scf00001g04119.1FAR1 family protein
Peaxi162Scf00003g00107.1FAR1 family protein
Peaxi162Scf00008g02313.1FAR1 family protein
Peaxi162Scf00011g01634.1FAR1 family protein
Peaxi162Scf00014g00026.1FAR1 family protein
Peaxi162Scf00035g00163.1FAR1 family protein
Peaxi162Scf00036g00419.1FAR1 family protein
Peaxi162Scf00038g01649.1FAR1 family protein
Peaxi162Scf00044g00179.1FAR1 family protein
Peaxi162Scf00049g00076.1FAR1 family protein
Peaxi162Scf00057g00055.1FAR1 family protein
Peaxi162Scf00058g02913.1FAR1 family protein
Peaxi162Scf00066g02121.1FAR1 family protein
Peaxi162Scf00071g00158.1FAR1 family protein
Peaxi162Scf00071g02210.1FAR1 family protein
Peaxi162Scf00072g00811.1FAR1 family protein
Peaxi162Scf00094g01124.1FAR1 family protein
Peaxi162Scf00109g01110.1FAR1 family protein
Peaxi162Scf00148g00123.1FAR1 family protein
Peaxi162Scf00150g00126.1FAR1 family protein
Peaxi162Scf00170g01227.1FAR1 family protein
Peaxi162Scf00170g01230.1FAR1 family protein
Peaxi162Scf00175g01033.1FAR1 family protein
Peaxi162Scf00180g01013.1FAR1 family protein
Peaxi162Scf00186g01113.1FAR1 family protein
Peaxi162Scf00189g00318.1FAR1 family protein
Peaxi162Scf00193g00712.1FAR1 family protein
Peaxi162Scf00194g00110.1FAR1 family protein
Peaxi162Scf00204g00057.1FAR1 family protein
Peaxi162Scf00207g00636.1FAR1 family protein
Peaxi162Scf00235g00015.1FAR1 family protein
Peaxi162Scf00235g00216.1FAR1 family protein
Peaxi162Scf00249g00025.1FAR1 family protein
Peaxi162Scf00300g00029.1FAR1 family protein
Peaxi162Scf00350g00128.1FAR1 family protein
Peaxi162Scf00385g00620.1FAR1 family protein
Peaxi162Scf00393g00052.1FAR1 family protein
Peaxi162Scf00417g01020.1FAR1 family protein
Peaxi162Scf00431g00213.1FAR1 family protein
Peaxi162Scf00468g00025.1FAR1 family protein
Peaxi162Scf00526g00068.1FAR1 family protein
Peaxi162Scf00533g00037.1FAR1 family protein
Peaxi162Scf00553g00531.1FAR1 family protein
Peaxi162Scf00574g00712.1FAR1 family protein
Peaxi162Scf00647g00411.1FAR1 family protein
Peaxi162Scf00671g00061.1FAR1 family protein
Peaxi162Scf00672g00010.1FAR1 family protein
Peaxi162Scf00703g00234.1FAR1 family protein
Peaxi162Scf00769g00012.1FAR1 family protein
Peaxi162Scf00771g00214.1FAR1 family protein
Peaxi162Scf00771g00216.1FAR1 family protein
Peaxi162Scf00802g00233.1FAR1 family protein
Peaxi162Scf00856g00315.1FAR1 family protein
Peaxi162Scf00888g00037.1FAR1 family protein
Peaxi162Scf00954g00114.1FAR1 family protein
Peaxi162Scf00957g00236.1FAR1 family protein
Peaxi162Scf01343g00153.1FAR1 family protein
Peaxi162Scf01504g00001.1FAR1 family protein
Peaxi162Scf01514g00020.1FAR1 family protein
Peaxi162Scf01626g00002.1FAR1 family protein
Peaxi162Scf03947g00009.1FAR1 family protein
FAR1 Family Introduction

We show that Arabidopsis FHY3 and FAR1, which encode two proteins related to Mutator-like transposases, act together to modulate phyA signaling by directly activating the transcription of FHY1 and FHL, whose products are essential for light-induced phyA nuclear accumulation and subsequent light responses. FHY3 and FAR1 have separable DNA binding and transcriptional activation domains that are highly conserved in Mutator-like transposases. Further, expression of FHY3 and FAR1 is negatively regulated by phyA signaling. We propose that FHY3 and FAR1 represent transcription factors that have been co-opted from an ancient Mutator-like transposase(s) to modulate phyA-signaling homeostasis in higher plants.

We next used a yeast one-hybrid assay to delineate the DNA sequences to which FHY3 and FAR1 bind. GAD-FHY3 or GAD-FAR1 fusion proteins (GAD, GAL4 transcriptional activation domain), but not GAD alone, activated the LacZ reporter genes driven by the FHY1 and FHL promoters. Deletion analysis narrowed down the FHY3/FAR1 binding site to a 39-bp promoter subfragment located on the "a" fragment for both FHY1 and FHL. Notably, these subfragments share a stretch of consensus sequence, 5'-TTCACGCGCC-3'. Mutating the core sequence "CACGCGC" of this motif (m2 and m3 for FHY1, m5 for FHL) abolished the reporter gene activation by both GAD-FHY3 and GAD-FAR1. Mutating the flanking sequences (m1 and m4) did not obviously affect the reporter gene activation by GAD-FAR1, but clearly reduced activation by GAD-FHY3. Thus, "CACGCGC" likely defines a cis-element that confers specific binding for FHY3 and FAR1 and is named FBS for FHY3-FAR1 binding site.

Lin R, Ding L, Casola C, Ripoll DR, Feschotte C, Wang H.
Transposase-derived transcription factors regulate light signaling in Arabidopsis.
Science, 2007. 318(5854): p. 1302-5.
PMID: 18033885