PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Actinidia chinensis
ARF Family
Species TF ID Description
Achn017391ARF family protein
Achn023421ARF family protein
Achn024331ARF family protein
Achn034241ARF family protein
Achn043361ARF family protein
Achn060371ARF family protein
Achn060451ARF family protein
Achn066701ARF family protein
Achn073331ARF family protein
Achn095921ARF family protein
Achn108891ARF family protein
Achn116231ARF family protein
Achn154151ARF family protein
Achn167981ARF family protein
Achn186621ARF family protein
Achn240341ARF family protein
Achn247961ARF family protein
Achn255601ARF family protein
Achn262881ARF family protein
Achn273801ARF family protein
Achn295121ARF family protein
Achn348711ARF family protein
Achn351531ARF family protein
Achn361971ARF 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