PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Ananas comosus
C3H Family
Species TF ID Description
Aco000296.1C3H family protein
Aco001815.1C3H family protein
Aco001897.1C3H family protein
Aco002426.1C3H family protein
Aco004374.1C3H family protein
Aco005443.1C3H family protein
Aco005650.1C3H family protein
Aco005757.1C3H family protein
Aco005863.1C3H family protein
Aco006100.1C3H family protein
Aco006330.1C3H family protein
Aco006377.1C3H family protein
Aco006633.1C3H family protein
Aco007027.1C3H family protein
Aco007581.1C3H family protein
Aco007976.1C3H family protein
Aco008451.1C3H family protein
Aco009226.1C3H family protein
Aco009755.1C3H family protein
Aco009946.1C3H family protein
Aco010544.1C3H family protein
Aco010557.1C3H family protein
Aco011053.1C3H family protein
Aco012259.1C3H family protein
Aco012990.1C3H family protein
Aco013878.1C3H family protein
Aco014027.1C3H family protein
Aco015187.1C3H family protein
Aco015558.1C3H family protein
Aco015681.1C3H family protein
Aco016242.1C3H family protein
Aco017123.1C3H family protein
Aco017732.1C3H family protein
Aco018631.1C3H family protein
Aco018944.1C3H family protein
Aco021548.1C3H family protein
Aco022196.1C3H family protein
Aco022643.1C3H family protein
Aco023433.1C3H family protein
Aco026868.1C3H family protein
Aco029012.1C3H 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