PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Pyrus bretschneideri
C3H Family
Species TF ID Description
Pbr000394.1C3H family protein
Pbr001036.1C3H family protein
Pbr003296.1C3H family protein
Pbr003767.1C3H family protein
Pbr003769.1C3H family protein
Pbr004096.1C3H family protein
Pbr004931.1C3H family protein
Pbr005182.1C3H family protein
Pbr008285.1C3H family protein
Pbr009535.1C3H family protein
Pbr010247.1C3H family protein
Pbr010595.1C3H family protein
Pbr010599.1C3H family protein
Pbr010912.1C3H family protein
Pbr011225.1C3H family protein
Pbr012205.3C3H family protein
Pbr012679.1C3H family protein
Pbr013366.1C3H family protein
Pbr013867.2C3H family protein
Pbr013918.1C3H family protein
Pbr014832.1C3H family protein
Pbr015419.1C3H family protein
Pbr015556.1C3H family protein
Pbr015608.1C3H family protein
Pbr015628.1C3H family protein
Pbr015956.1C3H family protein
Pbr016228.1C3H family protein
Pbr019244.1C3H family protein
Pbr019807.1C3H family protein
Pbr021936.1C3H family protein
Pbr021937.1C3H family protein
Pbr022137.1C3H family protein
Pbr022353.1C3H family protein
Pbr022799.2C3H family protein
Pbr023737.1C3H family protein
Pbr023818.1C3H family protein
Pbr023999.1C3H family protein
Pbr025381.1C3H family protein
Pbr026044.1C3H family protein
Pbr027455.1C3H family protein
Pbr027518.1C3H family protein
Pbr027525.1C3H family protein
Pbr027532.1C3H family protein
Pbr028600.1C3H family protein
Pbr028771.1C3H family protein
Pbr029260.1C3H family protein
Pbr029461.1C3H family protein
Pbr031038.1C3H family protein
Pbr031181.1C3H family protein
Pbr031401.1C3H family protein
Pbr032113.1C3H family protein
Pbr032118.1C3H family protein
Pbr032194.1C3H family protein
Pbr032568.1C3H family protein
Pbr032769.1C3H family protein
Pbr033225.1C3H family protein
Pbr033729.1C3H family protein
Pbr035834.1C3H family protein
Pbr036962.1C3H family protein
Pbr036963.1C3H family protein
Pbr036964.1C3H family protein
Pbr037100.1C3H family protein
Pbr041460.1C3H family protein
Pbr042019.2C3H family protein
Pbr042193.1C3H family protein
Pbr042646.1C3H 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