PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Arabidopsis lyrata
C3H Family
Species TF ID Description
313613C3H family protein
317994C3H family protein
319845C3H family protein
321255C3H family protein
325295C3H family protein
329122C3H family protein
337099C3H family protein
345050C3H family protein
470353C3H family protein
471143C3H family protein
472211C3H family protein
475777C3H family protein
475938C3H family protein
476679C3H family protein
477525C3H family protein
477944C3H family protein
478149C3H family protein
478627C3H family protein
479452C3H family protein
480130C3H family protein
480442C3H family protein
480488C3H family protein
481444C3H family protein
486038C3H family protein
487583C3H family protein
488102C3H family protein
488510C3H family protein
488738C3H family protein
491837C3H family protein
493888C3H family protein
494567C3H family protein
495266C3H family protein
495985C3H family protein
496509C3H family protein
496979C3H family protein
855832C3H family protein
878662C3H family protein
882420C3H family protein
887320C3H family protein
890483C3H family protein
890484C3H family protein
890808C3H family protein
891632C3H family protein
898633C3H family protein
901404C3H family protein
902470C3H family protein
904260C3H family protein
906088C3H family protein
906461C3H family protein
907942C3H family protein
910739C3H family protein
916000C3H family protein
918852C3H family protein
920502C3H 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