PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Coffea canephora
C3H Family
Species TF ID Description
Cc00_g09050C3H family protein
Cc00_g12990C3H family protein
Cc00_g20050C3H family protein
Cc00_g34180C3H family protein
Cc01_g05320C3H family protein
Cc01_g14310C3H family protein
Cc01_g20430C3H family protein
Cc02_g03500C3H family protein
Cc02_g06420C3H family protein
Cc02_g13660C3H family protein
Cc02_g21850C3H family protein
Cc02_g23540C3H family protein
Cc02_g27090C3H family protein
Cc02_g27790C3H family protein
Cc02_g27960C3H family protein
Cc02_g35520C3H family protein
Cc02_g35540C3H family protein
Cc03_g02100C3H family protein
Cc03_g13820C3H family protein
Cc04_g10560C3H family protein
Cc05_g02250C3H family protein
Cc05_g02720C3H family protein
Cc05_g04050C3H family protein
Cc05_g07550C3H family protein
Cc06_g05170C3H family protein
Cc06_g08760C3H family protein
Cc06_g08800C3H family protein
Cc06_g10850C3H family protein
Cc06_g11560C3H family protein
Cc06_g15990C3H family protein
Cc06_g16960C3H family protein
Cc06_g23490C3H family protein
Cc07_g00280C3H family protein
Cc07_g08480C3H family protein
Cc07_g10400C3H family protein
Cc08_g02980C3H family protein
Cc08_g10070C3H family protein
Cc09_g03550C3H family protein
Cc11_g09530C3H 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