PlantRegMap/PlantTFDB v5.0
Plant Transcription Factor Database
Previous version: v3.0 v4.0
Ipomoea nil
EIL Family
Species TF ID Description
XP_019155618.1EIL family protein
XP_019155619.1EIL family protein
XP_019155620.1EIL family protein
XP_019155621.1EIL family protein
XP_019155622.1EIL family protein
XP_019155623.1EIL family protein
XP_019157618.1EIL family protein
XP_019157619.1EIL family protein
XP_019161674.1EIL family protein
XP_019163516.1EIL family protein
XP_019163903.1EIL family protein
XP_019163904.1EIL family protein
XP_019163905.1EIL family protein
XP_019163906.1EIL family protein
XP_019163907.1EIL family protein
XP_019182837.1EIL family protein
XP_019183639.1EIL family protein
XP_019197784.1EIL family protein
XP_019197785.1EIL family protein
XP_019199386.1EIL family protein
XP_019199387.1EIL family protein
XP_019199388.1EIL family protein
XP_019199390.1EIL 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