PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Arabis alpina
C3H Family
Species TF ID Description
KFK24426.1C3H family protein
KFK25065.1C3H family protein
KFK25137.1C3H family protein
KFK25871.1C3H family protein
KFK25872.1C3H family protein
KFK26093.1C3H family protein
KFK26805.1C3H family protein
KFK28041.1C3H family protein
KFK31098.1C3H family protein
KFK31654.1C3H family protein
KFK32295.1C3H family protein
KFK32533.1C3H family protein
KFK33055.1C3H family protein
KFK34147.1C3H family protein
KFK34358.1C3H family protein
KFK35506.1C3H family protein
KFK36449.1C3H family protein
KFK37035.1C3H family protein
KFK37362.1C3H family protein
KFK37691.1C3H family protein
KFK38099.1C3H family protein
KFK38178.1C3H family protein
KFK38179.1C3H family protein
KFK38576.1C3H family protein
KFK38615.1C3H family protein
KFK40064.1C3H family protein
KFK40348.1C3H family protein
KFK40408.1C3H family protein
KFK41969.1C3H family protein
KFK42723.1C3H family protein
KFK42845.1C3H family protein
KFK45012.1C3H 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