PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Utricularia gibba
ARF Family
Species TF ID Description
678301635ARF family protein
678324459ARF family protein
678329049ARF family protein
678329478ARF family protein
678333450ARF family protein
678334731ARF family protein
678334972ARF family protein
678337229ARF family protein
678343983ARF family protein
678350336ARF family protein
678357226ARF family protein
678362400ARF family protein
678364249ARF family protein
678375543ARF family protein
678379155ARF family protein
678397030ARF family protein
678400949ARF family protein
678401190ARF family protein
678402797ARF family protein
678413811ARF family protein
678418801ARF family protein
678433664ARF family protein
678434392ARF family protein
678438716ARF family protein
678441800ARF family protein
678443807ARF family protein
678446646ARF family protein
678448784ARF family protein
678453144ARF family protein
678455859ARF family protein
678457263ARF family protein
678457374ARF family protein
678457719ARF family protein
678459405ARF family protein
678461711ARF family protein
678462313ARF 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