PlantRegMap/PlantTFDB v5.0
Plant Transcription Factor Database
Previous version: v3.0 v4.0
Capsicum chinense
ARF Family
Species TF ID Description
PHU00956.1ARF family protein
PHU02767.1ARF family protein
PHU03845.1ARF family protein
PHU03870.1ARF family protein
PHU04934.1ARF family protein
PHU06557.1ARF family protein
PHU07918.1ARF family protein
PHU08480.1ARF family protein
PHU09786.1ARF family protein
PHU10266.1ARF family protein
PHU11538.1ARF family protein
PHU15853.1ARF family protein
PHU17975.1ARF family protein
PHU19859.1ARF family protein
PHU24207.1ARF family protein
PHU24865.1ARF family protein
PHU25260.1ARF family protein
PHU26224.1ARF family protein
PHU28118.1ARF 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