PlantTFDB
PlantRegMap/PlantTFDB v5.0
Plant Transcription Factor Database
Previous version: v3.0 v4.0
Corchorus capsularis
C3H Family
Species TF ID Description
OMO53517C3H family protein
OMO53705C3H family protein
OMO54286C3H family protein
OMO57108C3H family protein
OMO57419C3H family protein
OMO59453C3H family protein
OMO60069C3H family protein
OMO61486C3H family protein
OMO62784C3H family protein
OMO63050C3H family protein
OMO63753C3H family protein
OMO66883C3H family protein
OMO67272C3H family protein
OMO67291C3H family protein
OMO67350C3H family protein
OMO68385C3H family protein
OMO69450C3H family protein
OMO69784C3H family protein
OMO70604C3H family protein
OMO70981C3H family protein
OMO76401C3H family protein
OMO77314C3H family protein
OMO80286C3H family protein
OMO81277C3H family protein
OMO81687C3H family protein
OMO83988C3H family protein
OMO84230C3H family protein
OMO84370C3H family protein
OMO84829C3H family protein
OMO86212C3H family protein
OMO89605C3H family protein
OMO91239C3H family protein
OMO95002C3H family protein
OMO99100C3H family protein
OMO99686C3H 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