PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Daucus carota
C3H Family
Species TF ID Description
DCAR_000420C3H family protein
DCAR_000772C3H family protein
DCAR_001801C3H family protein
DCAR_002027C3H family protein
DCAR_002110C3H family protein
DCAR_002800C3H family protein
DCAR_003208C3H family protein
DCAR_003591C3H family protein
DCAR_004290C3H family protein
DCAR_004784C3H family protein
DCAR_005817C3H family protein
DCAR_005818C3H family protein
DCAR_007271C3H family protein
DCAR_007382C3H family protein
DCAR_008020C3H family protein
DCAR_009404C3H family protein
DCAR_010715C3H family protein
DCAR_010881C3H family protein
DCAR_011819C3H family protein
DCAR_012478C3H family protein
DCAR_012917C3H family protein
DCAR_013028C3H family protein
DCAR_016000C3H family protein
DCAR_016105C3H family protein
DCAR_017831C3H family protein
DCAR_018074C3H family protein
DCAR_018151C3H family protein
DCAR_019147C3H family protein
DCAR_019255C3H family protein
DCAR_019739C3H family protein
DCAR_019789C3H family protein
DCAR_019902C3H family protein
DCAR_019970C3H family protein
DCAR_020476C3H family protein
DCAR_020780C3H family protein
DCAR_022398C3H family protein
DCAR_022399C3H family protein
DCAR_022400C3H family protein
DCAR_022405C3H family protein
DCAR_022912C3H family protein
DCAR_023169C3H family protein
DCAR_023511C3H family protein
DCAR_024556C3H family protein
DCAR_024960C3H family protein
DCAR_024990C3H family protein
DCAR_025485C3H family protein
DCAR_027091C3H family protein
DCAR_027092C3H family protein
DCAR_028631C3H family protein
DCAR_029217C3H family protein
DCAR_029604C3H family protein
DCAR_030328C3H family protein
DCAR_031600C3H 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