C - Chemistry – Metallurgy – 12 – N
Patent
C - Chemistry, Metallurgy
12
N
167/129, 530/15.
C12N 15/86 (2006.01) A61K 39/00 (2006.01) C07K 14/08 (2006.01) C07K 14/15 (2006.01) C07K 19/00 (2006.01) C12N 5/10 (2006.01) C12N 15/62 (2006.01) C12N 15/867 (2006.01)
Patent
CA 2016897
ABSTRACT OF THE DISCLOSURE The present invention is directed to replicable expression vectors for producing fusion proteins which are secreted in membraneous particles budded from the cell membrane. In particular these vectors express a hybrid gene product composed of a modified retrovirus gag gene fused to a heterologous gene, or any part thereof, wherein the gag gene modification is sufficient to enable a cell to produce the hybrid gene product in a membraneous particle by budding from the cell membrane into the culture medium or extracellular space, a process known as retrovirus-mediated secretion. The minimum gag sequences needed to obtain particle formation are described. The invention also provides hosts containing the expression vectors, and the fusion proteins produced by the vectors. Further the invention provides the membraneous particles produced by retrovirus-mediated secretion and uses of these particles for protein purification and in therapeutics.
Mcfadden Fincham
Research Corporation Technologies Inc.
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