PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Petunia axillaris
ARF Family
Species TF ID Description
Peaxi162Scf00011g01847.1ARF family protein
Peaxi162Scf00029g00142.1ARF family protein
Peaxi162Scf00045g00237.1ARF family protein
Peaxi162Scf00074g00537.1ARF family protein
Peaxi162Scf00099g00127.1ARF family protein
Peaxi162Scf00123g00214.1ARF family protein
Peaxi162Scf00270g00314.1ARF family protein
Peaxi162Scf00287g00193.1ARF family protein
Peaxi162Scf00320g00212.1ARF family protein
Peaxi162Scf00345g00027.1ARF family protein
Peaxi162Scf00351g00820.1ARF family protein
Peaxi162Scf00465g00051.1ARF family protein
Peaxi162Scf00488g00814.1ARF family protein
Peaxi162Scf00547g00610.1ARF family protein
Peaxi162Scf00662g00021.1ARF family protein
Peaxi162Scf00747g00018.1ARF family protein
Peaxi162Scf00784g00045.1ARF family protein
Peaxi162Scf00954g00314.1ARF family protein
Peaxi162Scf01011g00014.1ARF family protein
Peaxi162Scf01168g00016.1ARF family protein
ARF Family Introduction

Auxin response factors (ARF) are transcription factors that regulate the expression of auxin response genes. ARFs bind with specificity to TGTCTC auxin response elements (AuxRE) in promoters of these genes and function in combination with Aux/IAA (auxin/indole acetic acid) repressors, which dimerize with ARF activators in an auxin-regulated manner.

Most ARFs consist of an amino-terminal DNA-binding domain (DBD), a middle region that functions as an activation domain (AD) or repression domain (RD), and a carboxy-terminal dimerization domain (CTD). The ARF DBD is classified as a plant-specific B3-type, but requires additional amino-terminal and carboxy-terminal amino acids for efficient in vitro binding to TGTCTC AuxREs.

The ARF ADs and RDs are located just carboxy-terminal to the DBDs and contain biased amino acid sequences. ARF ADs are enriched in glutamine along with serine and leucine residues, while ARF RDs are enriched in serine, proline, leucine and glycine residues.

Guilfoyle TJ, Hagen G.
Auxin response factors.
Curr Opin Plant Biol, 2007. 10(5): p. 453-60.
PMID: 17900969