PlantRegMap/PlantTFDB v5.0
Plant Transcription Factor Database
Previous version: v3.0 v4.0
Chara braunii
C3H Family
Species TF ID Description
GBG60398.1C3H family protein
GBG60832.1C3H family protein
GBG62082.1C3H family protein
GBG62249.1C3H family protein
GBG67234.1C3H family protein
GBG67833.1C3H family protein
GBG71318.1C3H family protein
GBG71629.1C3H family protein
GBG71685.1C3H family protein
GBG72313.1C3H family protein
GBG73574.1C3H family protein
GBG74363.1C3H family protein
GBG74540.1C3H family protein
GBG76723.1C3H family protein
GBG77208.1C3H family protein
GBG77330.1C3H family protein
GBG77332.1C3H family protein
GBG77458.1C3H family protein
GBG77605.1C3H family protein
GBG77606.1C3H family protein
GBG77638.1C3H family protein
GBG79463.1C3H family protein
GBG79841.1C3H family protein
GBG79952.1C3H family protein
GBG79953.1C3H family protein
GBG81612.1C3H family protein
GBG84682.1C3H family protein
GBG85048.1C3H family protein
GBG89429.1C3H family protein
GBG91149.1C3H family protein
C3H Family Introduction

One gene isolated by virtual subtraction is PEI. It encodes a protein containing a Cys3His zinc finger domain associated with a number of animal and fungal transcription factors. In situ hybridization results showed that PEI1 is expressed throughout the embryo from globular to late cotyledon stage. Transgenic Arabidopsis plants expressing a PEI1 antisense gene produced white seeds in which embryo development did not progress through heart stage. Aberrant embryos failed to form cotyledons, but the embryonic root appeared to be normal. Aberrant embryos did not turn green, and the expression of genes involved in photomorphogenesis was drastically attenuated. In culture, aberrant embryos did not form true leaves, but root formation was apparently normal. These results suggest that PEI1 is an embryo-specific transcription factor that plays an important role during Arabidopsis embryogenesis, functioning primarily in the apical domain of the embryo.

we used a random binding site selection method to show that recombinant PEI1 protein purified from Escherichia coli can bind to specific DNA sequences. This DNA binding activity supports the prediction that PEI1 is an embryo-specific transcription factor.

Z Li and T L Thomas.
PEI1, an embryo-specific zinc finger protein gene required for heart-stage embryo formation in Arabidopsis.
Plant Cell, 1998. 10(3): p. 383-98.
PMID: 9501112