PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Petunia inflata
ARF Family
Species TF ID Description
Peinf101Scf00057g09001.1ARF family protein
Peinf101Scf00296g07022.1ARF family protein
Peinf101Scf00324g08011.1ARF family protein
Peinf101Scf00331g05009.1ARF family protein
Peinf101Scf00565g07010.1ARF family protein
Peinf101Scf00719g07017.1ARF family protein
Peinf101Scf00967g08014.1ARF family protein
Peinf101Scf00986g00014.1ARF family protein
Peinf101Scf01208g05010.1ARF family protein
Peinf101Scf01317g11021.1ARF family protein
Peinf101Scf01332g01002.1ARF family protein
Peinf101Scf01480g11020.1ARF family protein
Peinf101Scf01503g00009.1ARF family protein
Peinf101Scf01533g05063.1ARF family protein
Peinf101Scf02234g00021.1ARF family protein
Peinf101Scf02422g01011.1ARF family protein
Peinf101Scf02588g00007.1ARF family protein
Peinf101Scf04356g00022.1ARF family protein
Peinf101Scf05677g00004.1ARF 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