PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Pyrus bretschneideri
ARF Family
Species TF ID Description
Pbr000415.1ARF family protein
Pbr002342.1ARF family protein
Pbr005564.1ARF family protein
Pbr005854.1ARF family protein
Pbr008195.1ARF family protein
Pbr008352.1ARF family protein
Pbr008404.1ARF family protein
Pbr008550.1ARF family protein
Pbr010126.1ARF family protein
Pbr010582.1ARF family protein
Pbr011928.1ARF family protein
Pbr012651.1ARF family protein
Pbr016201.1ARF family protein
Pbr016467.1ARF family protein
Pbr018370.1ARF family protein
Pbr021104.1ARF family protein
Pbr025597.1ARF family protein
Pbr027098.1ARF family protein
Pbr027421.1ARF family protein
Pbr027725.1ARF family protein
Pbr028076.1ARF family protein
Pbr033588.1ARF family protein
Pbr033804.1ARF family protein
Pbr035088.1ARF family protein
Pbr037271.1ARF family protein
Pbr037412.1ARF family protein
Pbr039066.1ARF family protein
Pbr039624.1ARF family protein
Pbr041251.1ARF family protein
Pbr041836.1ARF family protein
Pbr042396.1ARF 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