Plant Transcription Factor Database
Previous version: v3.0
Dorcoceras hygrometricum
ARF Family
Species TF ID Description
KZV14968.1ARF family protein
KZV16421.1ARF family protein
KZV16619.1ARF family protein
KZV18270.1ARF family protein
KZV24268.1ARF family protein
KZV26166.1ARF family protein
KZV27284.1ARF family protein
KZV35152.1ARF family protein
KZV35176.1ARF family protein
KZV39602.1ARF family protein
KZV40912.1ARF family protein
KZV41738.1ARF family protein
KZV44107.1ARF family protein
KZV46474.1ARF family protein
KZV47127.1ARF family protein
KZV47218.1ARF family protein
KZV47386.1ARF family protein
KZV49018.1ARF family protein
KZV51032.1ARF family protein
KZV51111.1ARF family protein
KZV52806.1ARF 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