Plant Transcription Factor Database
Previous version: v3.0
Triticum urartu
C3H Family
Species TF ID Description
TRIUR3_04972-P1C3H family protein
TRIUR3_07445-P1C3H family protein
TRIUR3_09593-P1C3H family protein
TRIUR3_10106-P1C3H family protein
TRIUR3_13330-P1C3H family protein
TRIUR3_13576-P1C3H family protein
TRIUR3_17193-P1C3H family protein
TRIUR3_17194-P1C3H family protein
TRIUR3_18095-P1C3H family protein
TRIUR3_18519-P1C3H family protein
TRIUR3_18803-P1C3H family protein
TRIUR3_19274-P1C3H family protein
TRIUR3_19484-P1C3H family protein
TRIUR3_20038-P1C3H family protein
TRIUR3_22043-P1C3H family protein
TRIUR3_22562-P1C3H family protein
TRIUR3_23238-P1C3H family protein
TRIUR3_24688-P1C3H family protein
TRIUR3_24689-P1C3H family protein
TRIUR3_26979-P1C3H family protein
TRIUR3_27404-P1C3H family protein
TRIUR3_29037-P1C3H family protein
TRIUR3_30399-P1C3H family protein
TRIUR3_31365-P1C3H family protein
TRIUR3_31431-P1C3H family protein
TRIUR3_32041-P1C3H family protein
TRIUR3_32761-P1C3H family protein
TRIUR3_33103-P1C3H family protein
TRIUR3_34189-P1C3H family protein
TRIUR3_34195-P1C3H family protein
TRIUR3_35231-P1C3H 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