PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Triticum urartu
ARF Family
Species TF ID Description
TRIUR3_02890-P1ARF family protein
TRIUR3_03736-P1ARF family protein
TRIUR3_10132-P1ARF family protein
TRIUR3_12386-P1ARF family protein
TRIUR3_14814-P1ARF family protein
TRIUR3_17755-P1ARF family protein
TRIUR3_19224-P1ARF family protein
TRIUR3_24520-P1ARF family protein
TRIUR3_25750-P1ARF family protein
TRIUR3_28704-P1ARF family protein
TRIUR3_28948-P1ARF family protein
TRIUR3_32597-P1ARF family protein
TRIUR3_33045-P1ARF family protein
TRIUR3_33501-P1ARF family protein
TRIUR3_33948-P1ARF family protein
TRIUR3_35254-P1ARF 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