PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Oropetium thomaeum
C3H Family
Species TF ID Description
Oropetium_20150105_01071AC3H family protein
Oropetium_20150105_01974AC3H family protein
Oropetium_20150105_01991AC3H family protein
Oropetium_20150105_02037AC3H family protein
Oropetium_20150105_03620AC3H family protein
Oropetium_20150105_03799AC3H family protein
Oropetium_20150105_03804AC3H family protein
Oropetium_20150105_05910AC3H family protein
Oropetium_20150105_07262AC3H family protein
Oropetium_20150105_07373AC3H family protein
Oropetium_20150105_08159AC3H family protein
Oropetium_20150105_09047AC3H family protein
Oropetium_20150105_09725AC3H family protein
Oropetium_20150105_10590AC3H family protein
Oropetium_20150105_11463AC3H family protein
Oropetium_20150105_11797AC3H family protein
Oropetium_20150105_15413AC3H family protein
Oropetium_20150105_15590AC3H family protein
Oropetium_20150105_17436AC3H family protein
Oropetium_20150105_18797AC3H family protein
Oropetium_20150105_19060AC3H family protein
Oropetium_20150105_19479AC3H family protein
Oropetium_20150105_21144AC3H family protein
Oropetium_20150105_21343AC3H family protein
Oropetium_20150105_21405AC3H family protein
Oropetium_20150105_23172AC3H family protein
Oropetium_20150105_23317AC3H family protein
Oropetium_20150105_23513AC3H family protein
Oropetium_20150105_23793AC3H family protein
Oropetium_20150105_23857AC3H family protein
Oropetium_20150105_23974AC3H family protein
Oropetium_20150105_24073AC3H family protein
Oropetium_20150105_24151AC3H family protein
Oropetium_20150105_27721AC3H 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