PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Linum usitatissimum
ARF Family
Species TF ID Description
Lus10005264ARF family protein
Lus10005930ARF family protein
Lus10007386ARF family protein
Lus10007440ARF family protein
Lus10009770ARF family protein
Lus10010969ARF family protein
Lus10012421ARF family protein
Lus10013942ARF family protein
Lus10017640ARF family protein
Lus10017641ARF family protein
Lus10017680ARF family protein
Lus10019940ARF family protein
Lus10020804ARF family protein
Lus10021467ARF family protein
Lus10022943ARF family protein
Lus10023058ARF family protein
Lus10023519ARF family protein
Lus10024320ARF family protein
Lus10024455ARF family protein
Lus10024753ARF family protein
Lus10024754ARF family protein
Lus10026510ARF family protein
Lus10027600ARF family protein
Lus10030240ARF family protein
Lus10031354ARF family protein
Lus10032413ARF family protein
Lus10032541ARF family protein
Lus10033597ARF family protein
Lus10033598ARF family protein
Lus10033635ARF family protein
Lus10040403ARF family protein
Lus10040906ARF family protein
Lus10041340ARF family protein
Lus10043200ARF 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