PlantTFDB
PlantRegMap/PlantTFDB v5.0
Plant Transcription Factor Database
Dioscorea rotundata
C3H Family
Species TF ID Description
Dr00432.1C3H family protein
Dr00876.1C3H family protein
Dr01605.1C3H family protein
Dr02053.1C3H family protein
Dr03610.1C3H family protein
Dr04027.1C3H family protein
Dr04119.1C3H family protein
Dr04551.1C3H family protein
Dr04881.1C3H family protein
Dr04929.1C3H family protein
Dr05330.1C3H family protein
Dr06295.1C3H family protein
Dr09910.1C3H family protein
Dr10083.1C3H family protein
Dr11354.1C3H family protein
Dr11870.1C3H family protein
Dr12093.1C3H family protein
Dr12833.1C3H family protein
Dr14009.1C3H family protein
Dr16025.1C3H family protein
Dr16468.1C3H family protein
Dr16854.1C3H family protein
Dr17708.1C3H family protein
Dr18363.1C3H 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