PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Pseudotsuga menziesii
C3H Family
Species TF ID Description
PSME_00001974-RAC3H family protein
PSME_00003774-RAC3H family protein
PSME_00003891-RAC3H family protein
PSME_00005225-RAC3H family protein
PSME_00005878-RAC3H family protein
PSME_00006534-RAC3H family protein
PSME_00007752-RAC3H family protein
PSME_00010167-RAC3H family protein
PSME_00010923-RAC3H family protein
PSME_00011607-RAC3H family protein
PSME_00012707-RAC3H family protein
PSME_00016861-RAC3H family protein
PSME_00016930-RAC3H family protein
PSME_00016931-RAC3H family protein
PSME_00022880-RAC3H family protein
PSME_00023176-RAC3H family protein
PSME_00023293-RAC3H family protein
PSME_00023294-RAC3H family protein
PSME_00023765-RAC3H family protein
PSME_00027335-RAC3H family protein
PSME_00029577-RAC3H family protein
PSME_00030063-RAC3H family protein
PSME_00030658-RAC3H family protein
PSME_00031639-RAC3H family protein
PSME_00031887-RAC3H family protein
PSME_00032743-RAC3H family protein
PSME_00033810-RAC3H family protein
PSME_00034990-RAC3H family protein
PSME_00039964-RAC3H family protein
PSME_00040473-RAC3H family protein
PSME_00041800-RAC3H family protein
PSME_00045329-RAC3H family protein
PSME_00048460-RAC3H family protein
PSME_00048511-RAC3H family protein
PSME_00051091-RAC3H family protein
PSME_00051092-RAC3H family protein
PSME_00051914-RAC3H family protein
PSME_00052684-RAC3H family protein
PSME_00054338-RAC3H family protein
PSME_00056126-RAC3H family protein
PSME_00056753-RAC3H family protein
PSME_00056914-RAC3H 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