PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Citrus clementina
ARF Family
Species TF ID Description
Ciclev10000183mARF family protein
Ciclev10000491mARF family protein
Ciclev10000693mARF family protein
Ciclev10000695mARF family protein
Ciclev10000696mARF family protein
Ciclev10000976mARF family protein
Ciclev10003317mARF family protein
Ciclev10007286mARF family protein
Ciclev10007292mARF family protein
Ciclev10011065mARF family protein
Ciclev10011162mARF family protein
Ciclev10011194mARF family protein
Ciclev10011221mARF family protein
Ciclev10014198mARF family protein
Ciclev10014200mARF family protein
Ciclev10014391mARF family protein
Ciclev10019131mARF family protein
Ciclev10019174mARF family protein
Ciclev10019249mARF family protein
Ciclev10019257mARF family protein
Ciclev10027839mARF family protein
Ciclev10027901mARF family protein
Ciclev10027918mARF family protein
Ciclev10030696mARF family protein
Ciclev10030751mARF family protein
Ciclev10030860mARF family protein
Ciclev10030900mARF 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