PlantTFDB - Plant Transcription Factor Databases @ CBI, PKU
PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Oryza brachyantha
C3H Family
Species TF ID Description
OB01G14640.1C3H family protein
OB01G15840.1C3H family protein
OB01G19700.1C3H family protein
OB01G20080.1C3H family protein
OB01G20090.1C3H family protein
OB01G29920.1C3H family protein
OB01G32230.1C3H family protein
OB01G33680.1C3H family protein
OB01G50590.1C3H family protein
OB02G16470.1C3H family protein
OB02G21780.1C3H family protein
OB02G35110.1C3H family protein
OB02G45230.1C3H family protein
OB03G10950.1C3H family protein
OB03G24180.1C3H family protein
OB03G25750.1C3H family protein
OB03G37760.1C3H family protein
OB04G10320.1C3H family protein
OB04G20690.1C3H family protein
OB04G35690.1C3H family protein
OB04G36130.1C3H family protein
OB05G29110.1C3H family protein
OB05G34300.1C3H family protein
OB05G35760.1C3H family protein
OB06G21160.1C3H family protein
OB06G24450.1C3H family protein
OB06G29030.1C3H family protein
OB06G32770.1C3H family protein
OB06G34390.1C3H family protein
OB07G12040.1C3H family protein
OB07G24910.1C3H family protein
OB08G12430.1C3H family protein
OB08G13850.1C3H family protein
OB09G14930.1C3H family protein
OB11G20340.1C3H family protein
OB12G17310.1C3H family protein
OB12G18060.1C3H family protein
OB12G21400.1C3H 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