PlantTFDB
PlantRegMap/PlantTFDB v5.0
Plant Transcription Factor Database
Previous version: v3.0 v4.0
Trema orientale
C3H Family
Species TF ID Description
PON38356.1C3H family protein
PON38358.1C3H family protein
PON39308.1C3H family protein
PON48721.1C3H family protein
PON49216.1C3H family protein
PON54885.1C3H family protein
PON57837.1C3H family protein
PON61381.1C3H family protein
PON65470.1C3H family protein
PON69670.1C3H family protein
PON74843.1C3H family protein
PON81018.1C3H family protein
PON81306.1C3H family protein
PON81348.1C3H family protein
PON82211.1C3H family protein
PON84420.1C3H family protein
PON85271.1C3H family protein
PON85477.1C3H family protein
PON86201.1C3H family protein
PON86592.1C3H family protein
PON87008.1C3H family protein
PON87437.1C3H family protein
PON87800.1C3H family protein
PON88281.1C3H family protein
PON89172.1C3H family protein
PON91568.1C3H family protein
PON91702.1C3H family protein
PON93468.1C3H family protein
PON93478.1C3H family protein
PON96628.1C3H family protein
PON98276.1C3H family protein
PON99487.1C3H family protein
PON99948.1C3H family protein
POO00310.1C3H family protein
POO00586.1C3H family protein
POO01317.1C3H 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