PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Capsicum annuum
ARF Family
Species TF ID Description
CA00g64660ARF family protein
CA00g91200ARF family protein
CA01g00820ARF family protein
CA01g34570ARF family protein
CA02g04150ARF family protein
CA03g31230ARF family protein
CA04g04240ARF family protein
CA04g09370ARF family protein
CA04g23050ARF family protein
CA05g10920ARF family protein
CA06g24030ARF family protein
CA07g06810ARF family protein
CA07g07400ARF family protein
CA08g14850ARF family protein
CA09g02640ARF family protein
CA09g14490ARF family protein
CA10g12460ARF family protein
CA11g18930ARF family protein
CA11g19220ARF family protein
CA12g12580ARF 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