Ekaterina G. Semenyuk

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We successfully cloned and expressed a single-chain antibody (425scFv), that is directed to human epidermal growth factor receptor HER1 (EGFR) in transgenic tobacco plants as a fusion with bacterial barstar gene (425scFv-barstar). Plant-produced recombinant 425scFv-barstar was recovered using barstar-barnase system. Based on barstar-barnase affinity, during(More)
Soybean was used as a model for studies of chemical induction of gene expression in seeds. A chimeric transcriptional activator, VGE, driven by the soybean seed glycinin G1 promoter, was used to induce the expression of an ER-targeted GFPKDEL reporter protein upon addition of the chemical ligand, methoxyfenozide. The chemical gene switch activated gene(More)
The ability to regulate spatial and temporal expression of genes is a useful tool in biotechnology as well as studies of functional genomics. Such regulation can provide information concerning the function of a gene in a developmental context while avoiding potential harmful effects due to constitutive overexpression of the gene. A GUS gene construct that(More)
To date, many examples of successful expression of immunoglobulin variable domains, or miniantibodies (scFv), in plant cells are known. Simple requirements to assembling these molecules in the cell, the possibility of their targeted transport to different cell compartments, and the possibility of designing bifunctional antibodies on their basis facilitates(More)
A recombinant scFv antibody against human spleen ferritin was expressed as a barstar-fused protein in Escherichia coli and in Nicotiana tabacum plants and suspension cell cultures. As demonstrated by immunoblotting with antibarstar antibodies, direction of the recombinant protein to the endomembrane system of plant cells ensured its stability and(More)
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