PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Picea abies
C3H Family
Species TF ID Description
MA_10435282g0010C3H family protein
MA_10435385g0010C3H family protein
MA_111475g0020C3H family protein
MA_11306g0010C3H family protein
MA_1139g0010C3H family protein
MA_1151g0010C3H family protein
MA_126170g0010C3H family protein
MA_126258g0010C3H family protein
MA_126678g0010C3H family protein
MA_127060g0010C3H family protein
MA_137427g0010C3H family protein
MA_159838g0010C3H family protein
MA_17746g0010C3H family protein
MA_22572g0020C3H family protein
MA_26803g0010C3H family protein
MA_324587g0010C3H family protein
MA_329868g0010C3H family protein
MA_6394g0010C3H family protein
MA_6700463g0010C3H family protein
MA_67616g0010C3H family protein
MA_68032g0010C3H family protein
MA_71756g0010C3H family protein
MA_834070g0010C3H family protein
MA_83924g0010C3H family protein
MA_8408g0030C3H family protein
MA_88000g0010C3H family protein
MA_88541g0010C3H family protein
MA_8911g0010C3H family protein
MA_910870g0010C3H family protein
MA_917988g0010C3H family protein
MA_98656g0010C3H 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