Plant Transcription Factor Database
Previous version: v3.0
Petunia inflata
EIL Family
Species TF ID Description
Peinf101Ctg13657787g00001.1EIL family protein
Peinf101Scf00015g12028.1EIL family protein
Peinf101Scf00258g15027.1EIL family protein
Peinf101Scf00496g00003.1EIL family protein
Peinf101Scf00506g12017.1EIL family protein
Peinf101Scf00582g03022.1EIL family protein
Peinf101Scf01698g00005.1EIL family protein
Peinf101Scf02706g01012.1EIL family protein
Peinf101Scf03053g00009.1EIL family protein
Peinf101Scf07987g00007.1EIL family protein
Peinf101Scf10612g00004.1EIL family protein
Peinf101Scf14446g00004.1EIL family protein
EIL Family Introduction

The gaseous phytohormone ethylene regulates various processes related to growth, development, and stress response of higher plants. A largely linear pathway of ethylene signaling was revealed by a number of molecular genetic studies. In the pathway, Ethylene-insensitive3 (EIN3) and EIN3-like (EIL) proteins are the key transcription factors. The EIN3/EIL proteins were shown to regulate expression of the GCC-box-binding transcription factors, ethylene-response factors. It is known that the phenotype of the Arabidopsis thaliana EIN3 (AtEIN3)-deficient mutants, e.g. long seedlings in the presence of ethylene or its precursor, is suppressed by overexpression of Arabidopsis EIL1 (AtEIL1) or EIL2 (AtEIL2), indicating the functional equivalence of these proteins.

In the present study, a region corresponding to the major DBD of the EIN3/EIL transcription factor family, which is the key factor in the ethylene signaling, was identified. The isolated domain exists in a monomeric form and retained the sequence specificity for the DNA binding. The structure determined by NMR spectroscopy consists of five alpha-helices, packing into a novel fold dissimilar to known DBDs. An NMR titration analysis suggested that a region including the key mutation site, ein3-3 site, was shown to be involved in DNA binding.

Yamasaki K, Kigawa T, Inoue M, Yamasaki T, Yabuki T, Aoki M, Seki E, Matsuda T, Tomo Y, Terada T, Shirouzu M, Tanaka A, Seki M, Shinozaki K, Yokoyama S.
Solution structure of the major DNA-binding domain of Arabidopsis thaliana ethylene-insensitive3-like3.
J Mol Biol, 2005. 348(2): p. 253-64.
PMID: 15811366