PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Beta vulgaris
ARF Family
Species TF ID Description
Bv1_000500_ghtj.t1ARF family protein
Bv1_002880_qzmp.t1ARF family protein
Bv1_022070_hgze.t1ARF family protein
Bv2_035870_qfwi.t1ARF family protein
Bv2_047650_jrpi.t1ARF family protein
Bv4_084470_okdq.t1ARF family protein
Bv5_113390_yzaj.t1ARF family protein
Bv5_125780_orwr.t1ARF family protein
Bv6_145940_kddw.t1ARF family protein
Bv7_161770_eqms.t1ARF family protein
Bv8_182410_opag.t1ARF family protein
Bv8_190650_zzhs.t1ARF family protein
Bv9_203750_gcik.t1ARF family protein
Bv9_203750_gcik.t2ARF family protein
Bv9_208190_efdx.t1ARF family protein
Bv9_208190_efdx.t2ARF 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