PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Capsicum annuum
C3H Family
Species TF ID Description
CA00g47490C3H family protein
CA00g58500C3H family protein
CA00g62090C3H family protein
CA00g89460C3H family protein
CA01g16080C3H family protein
CA01g20180C3H family protein
CA01g25720C3H family protein
CA02g19640C3H family protein
CA02g21790C3H family protein
CA02g23810C3H family protein
CA03g08690C3H family protein
CA03g16670C3H family protein
CA03g21780C3H family protein
CA03g25220C3H family protein
CA04g01820C3H family protein
CA04g13010C3H family protein
CA06g01400C3H family protein
CA06g11170C3H family protein
CA06g20160C3H family protein
CA06g21240C3H family protein
CA06g25370C3H family protein
CA07g14200C3H family protein
CA08g01000C3H family protein
CA08g12100C3H family protein
CA09g16770C3H family protein
CA09g17320C3H family protein
CA10g19310C3H family protein
CA10g19560C3H family protein
CA10g20650C3H family protein
CA10g20930C3H family protein
CA11g00230C3H family protein
CA11g17340C3H family protein
CA11g19090C3H family protein
CA11g20080C3H family protein
CA12g03830C3H 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