PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Linum usitatissimum
C3H Family
Species TF ID Description
Lus10000486C3H family protein
Lus10001520C3H family protein
Lus10002082C3H family protein
Lus10002880C3H family protein
Lus10003846C3H family protein
Lus10004183C3H family protein
Lus10004573C3H family protein
Lus10007493C3H family protein
Lus10007941C3H family protein
Lus10009810C3H family protein
Lus10010687C3H family protein
Lus10012016C3H family protein
Lus10012017C3H family protein
Lus10012922C3H family protein
Lus10013476C3H family protein
Lus10014271C3H family protein
Lus10014490C3H family protein
Lus10014914C3H family protein
Lus10015156C3H family protein
Lus10016272C3H family protein
Lus10017708C3H family protein
Lus10018621C3H family protein
Lus10019430C3H family protein
Lus10019431C3H family protein
Lus10019481C3H family protein
Lus10019709C3H family protein
Lus10020196C3H family protein
Lus10020889C3H family protein
Lus10021043C3H family protein
Lus10021648C3H family protein
Lus10021656C3H family protein
Lus10025447C3H family protein
Lus10025973C3H family protein
Lus10026996C3H family protein
Lus10028100C3H family protein
Lus10028950C3H family protein
Lus10028970C3H family protein
Lus10029988C3H family protein
Lus10030063C3H family protein
Lus10031439C3H family protein
Lus10031527C3H family protein
Lus10031528C3H family protein
Lus10033255C3H family protein
Lus10033487C3H family protein
Lus10033665C3H family protein
Lus10033962C3H family protein
Lus10034620C3H family protein
Lus10034624C3H family protein
Lus10035006C3H family protein
Lus10035248C3H family protein
Lus10035256C3H family protein
Lus10035330C3H family protein
Lus10035460C3H family protein
Lus10038890C3H family protein
Lus10040567C3H family protein
Lus10040585C3H family protein
Lus10040662C3H family protein
Lus10040914C3H family protein
Lus10043286C3H family protein
Lus10043287C3H family protein
Lus10043330C3H 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