PlantRegMap/PlantTFDB v5.0
Plant Transcription Factor Database
Previous version: v3.0 v4.0
Artemisia annua
C3H Family
Species TF ID Description
Aan000139C3H family protein
Aan001793C3H family protein
Aan001882C3H family protein
Aan001947C3H family protein
Aan002061C3H family protein
Aan007161C3H family protein
Aan008659C3H family protein
Aan009778C3H family protein
Aan009876C3H family protein
Aan010936C3H family protein
Aan013078C3H family protein
Aan014133C3H family protein
Aan014664C3H family protein
Aan014822C3H family protein
Aan014865C3H family protein
Aan015244C3H family protein
Aan015622C3H family protein
Aan015958C3H family protein
Aan016884C3H family protein
Aan017235C3H family protein
Aan017238C3H family protein
Aan017256C3H family protein
Aan017862C3H family protein
Aan018702C3H family protein
Aan019917C3H family protein
Aan020277C3H family protein
Aan021252C3H family protein
Aan021508C3H 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