PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Aethionema arabicum
C3H Family
Species TF ID Description
AA102G00069C3H family protein
AA10G00330C3H family protein
AA12G00223C3H family protein
AA13G00015C3H family protein
AA168G00028C3H family protein
AA19G00049C3H family protein
AA21G00304C3H family protein
AA21G00544C3H family protein
AA26G00002C3H family protein
AA26G00605C3H family protein
AA26G00818C3H family protein
AA29G00028C3H family protein
AA29G00263C3H family protein
AA31G00421C3H family protein
AA32G00365C3H family protein
AA32G00506C3H family protein
AA32G00868C3H family protein
AA32G01067C3H family protein
AA33G00259C3H family protein
AA33G00301C3H family protein
AA39G00249C3H family protein
AA39G00364C3H family protein
AA39G00700C3H family protein
AA40G00153C3H family protein
AA40G00257C3H family protein
AA40G00372C3H family protein
AA40G00457C3H family protein
AA44G00029C3H family protein
AA44G00501C3H family protein
AA4G00058C3H family protein
AA53G00221C3H family protein
AA55G00051C3H family protein
AA57G00210C3H family protein
AA5G00005C3H family protein
AA61G00075C3H family protein
AA61G00689C3H family protein
AA65G00086C3H family protein
AA7G00098C3H family protein
AA96G00100C3H family protein
AA9G00131C3H 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