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Membrane-Based Inverse Transition Cycling: An Improved Means for Purifying Plant-Derived Recombinant Protein-Elastin-Like Polypeptide Fusions

Author(s): Hoang Trong Phan | Udo Conrad

Journal: International Journal of Molecular Sciences
ISSN 1422-0067

Volume: 12;
Issue: 5;
Start page: 2808;
Date: 2011;
Original page

Keywords: transgenic plants | avian influenza | H5N1 | nanobody | ELPylation | Inverse Transition Cycling

Elastin-like peptide (ELP) was fused to two different avian flu H5N1 antigens and expressed in transgenic tobacco plants. The presence of the ELP tag enhanced the accumulation of the heterologous proteins in the tobacco leaves. An effective membrane-based Inverse Transition Cycling was developed to recover the ELPylated antigens and antibodies from plant material. The functionality of both the ELPylated neuraminidase and an ELPylated nanobody was demonstrated.
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