PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Amaranthus hypochondriacus
AP2 Family
Species TF ID Description
AHYPO_002548-RAAP2 family protein
AHYPO_005557-RAAP2 family protein
AHYPO_006674-RAAP2 family protein
AHYPO_007775-RAAP2 family protein
AHYPO_010043-RAAP2 family protein
AHYPO_010077-RAAP2 family protein
AHYPO_010719-RAAP2 family protein
AHYPO_017057-RAAP2 family protein
AHYPO_018071-RAAP2 family protein
AHYPO_021574-RAAP2 family protein
AHYPO_000053-RAAP2 family protein
AHYPO_022534-RAAP2 family protein
AHYPO_015243-RAAP2 family protein
AHYPO_001078-RAAP2 family protein
AHYPO_017751-RAAP2 family protein
AP2 Family Introduction

The AP2/ERF superfamily is defined by the AP2/ERF domain, which consists of about 60 to 70 amino acids and is involved in DNA binding. These three families have been defined as follows. The AP2 family proteins contain two repeated AP2/ERF domains, the ERF family proteins contain a single AP2/ERF domain, and the RAV family proteins contain a B3 domain, which is a DNA-binding domain conserved in other plant-specific transcription factors, in addition to the single AP2/ERF domain.

It has been demonstrated that the AP2/ERF proteins have important functions in the transcriptional regulation of a variety of biological processes related to growth and development, as well as various responses to environmental stimuli.

Genes in the AP2 family have been shown to participate in the regulation of developmental processes, e.g. flower development, spikelet meristem determinacy, leaf epidermal cell identity, and embryo development.

Toshitsugu Nakano, Kaoru Suzuki, Tatsuhito Fujimura, and Hideaki Shinshi.
Genome-wide analysis of the ERF gene family in Arabidopsis and rice.
Plant Physiol, 2006. 140(2): p. 411-32.
PMID: 16407444


Using an in vitro selection procedure, the DNA binding specificity of the two AP2 repeat containing protein ANT was found to be 5'-gCAC(A/G)N(A/T)TcCC(a/g)ANG(c/t)-3'. This consensus site is much longer than sites recognized by proteins containing a single AP2 repeat and neither AP2 repeat of ANT was alone capable of binding to the selected sequences, suggesting that both AP2 repeats make DNA contacts.

Nole-Wilson S, Krizek BA.
DNA binding properties of the Arabidopsis floral development protein AINTEGUMENTA.
Nucleic Acids Res. 2000 Nov 1;28(21):4076-82. Erratum in: Nucleic Acids Res 2001 Mar 1;29(5):1261.
PMID: 11058102