Plant Transcription Factor Database
Previous version: v1.0, v2.0, v3.0
Dorcoceras hygrometricum
C3H Family
Species TF ID Description
KZV18924.1C3H family protein
KZV21608.1C3H family protein
KZV21625.1C3H family protein
KZV23174.1C3H family protein
KZV23678.1C3H family protein
KZV24021.1C3H family protein
KZV24167.1C3H family protein
KZV24860.1C3H family protein
KZV25386.1C3H family protein
KZV26682.1C3H family protein
KZV34120.1C3H family protein
KZV35887.1C3H family protein
KZV36402.1C3H family protein
KZV37212.1C3H family protein
KZV37294.1C3H family protein
KZV37416.1C3H family protein
KZV38324.1C3H family protein
KZV40315.1C3H family protein
KZV41121.1C3H family protein
KZV43288.1C3H family protein
KZV44968.1C3H family protein
KZV45807.1C3H family protein
KZV47266.1C3H family protein
KZV49022.1C3H family protein
KZV50266.1C3H family protein
KZV53323.1C3H family protein
KZV53508.1C3H family protein
KZV53835.1C3H family protein
KZV54209.1C3H family protein
KZV56929.1C3H family protein
KZV57568.1C3H 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