PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Juglans regia
C3H Family
Species TF ID Description
WALNUT_00000859-RAC3H family protein
WALNUT_00001396-RAC3H family protein
WALNUT_00002633-RAC3H family protein
WALNUT_00003515-RAC3H family protein
WALNUT_00004392-RAC3H family protein
WALNUT_00005377-RAC3H family protein
WALNUT_00006308-RAC3H family protein
WALNUT_00007194-RAC3H family protein
WALNUT_00008284-RAC3H family protein
WALNUT_00008619-RAC3H family protein
WALNUT_00008726-RAC3H family protein
WALNUT_00009899-RAC3H family protein
WALNUT_00010949-RAC3H family protein
WALNUT_00012114-RAC3H family protein
WALNUT_00012456-RAC3H family protein
WALNUT_00012626-RAC3H family protein
WALNUT_00013720-RAC3H family protein
WALNUT_00013918-RAC3H family protein
WALNUT_00014009-RAC3H family protein
WALNUT_00015385-RAC3H family protein
WALNUT_00016110-RAC3H family protein
WALNUT_00018610-RAC3H family protein
WALNUT_00018731-RAC3H family protein
WALNUT_00018733-RAC3H family protein
WALNUT_00020076-RAC3H family protein
WALNUT_00020105-RAC3H family protein
WALNUT_00020406-RAC3H family protein
WALNUT_00020953-RAC3H family protein
WALNUT_00021715-RAC3H family protein
WALNUT_00021717-RAC3H family protein
WALNUT_00023086-RAC3H family protein
WALNUT_00023600-RAC3H family protein
WALNUT_00025139-RAC3H family protein
WALNUT_00025379-RAC3H family protein
WALNUT_00025828-RAC3H family protein
WALNUT_00026182-RAC3H family protein
WALNUT_00028104-RAC3H family protein
WALNUT_00030891-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