PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Populus euphratica
ARF Family
Species TF ID Description
CCG002348.1ARF family protein
CCG004675.2ARF family protein
CCG005276.2ARF family protein
CCG006186.1ARF family protein
CCG010811.1ARF family protein
CCG011139.1ARF family protein
CCG011957.1ARF family protein
CCG012347.1ARF family protein
CCG013250.1ARF family protein
CCG013979.1ARF family protein
CCG014190.1ARF family protein
CCG016668.1ARF family protein
CCG016777.1ARF family protein
CCG017865.3ARF family protein
CCG018207.3ARF family protein
CCG018955.1ARF family protein
CCG019520.1ARF family protein
CCG020765.1ARF family protein
CCG021578.1ARF family protein
CCG021700.1ARF family protein
CCG022077.1ARF family protein
CCG026244.2ARF family protein
CCG028189.1ARF family protein
CCG028263.1ARF family protein
CCG028452.1ARF family protein
CCG029673.1ARF family protein
CCG030087.2ARF family protein
CCG031214.1ARF family protein
CCG031592.1ARF family protein
CCG033575.1ARF family protein
CCG033657.1ARF family protein
CCG034089.1ARF family protein
CCG034129.1ARF 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