PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Aquilegia coerulea
ARF Family
Species TF ID Description
Aqcoe1G142700.1.pARF family protein
Aqcoe1G142700.2.pARF family protein
Aqcoe1G185500.1.pARF family protein
Aqcoe1G185500.2.pARF family protein
Aqcoe1G248400.1.pARF family protein
Aqcoe1G248400.2.pARF family protein
Aqcoe1G248400.3.pARF family protein
Aqcoe1G494900.1.pARF family protein
Aqcoe2G315700.1.pARF family protein
Aqcoe2G315700.2.pARF family protein
Aqcoe3G431200.1.pARF family protein
Aqcoe4G073400.1.pARF family protein
Aqcoe4G073400.2.pARF family protein
Aqcoe5G074300.1.pARF family protein
Aqcoe5G216900.1.pARF family protein
Aqcoe5G216900.2.pARF family protein
Aqcoe5G226900.1.pARF family protein
Aqcoe5G226900.2.pARF family protein
Aqcoe5G338800.1.pARF family protein
Aqcoe5G338800.2.pARF family protein
Aqcoe7G007400.1.pARF family protein
Aqcoe7G284000.1.pARF family protein
Aqcoe7G284000.2.pARF 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