Abstract: The present invention relates to improved transposase polypeptides having increased solubility. The enzyme of the invention was developed based on the Sleeping Beauty (SB) transposase. The invention provides further nucleic acids, vectors and recombinant cells encoding or containing the improved transposase, as well as a transposase system. Furthermore provided are medical and non-medical uses of the transposase of the invention for gene delivery. The invention is in particular useful as a tool for gene delivery in genetically modified cell based therapeutic approaches for treating various diseases.

Abstract: The present invention relates to improved transposase polypeptides having increased solubility. The enzyme of the invention was developed based on the Sleeping Beauty (SB) transposase. The invention provides further nucleic acids, vectors and recombinant cells encoding or containing the improved transposase, as well as a transposase system. Furthermore provided are medical and non-medical uses of the transposase of the invention for gene delivery. The invention is in particular useful as a tool for gene delivery in genetically modified cell based therapeutic approaches for treating various diseases.

Abstract: The Sleeping Beauty (SB) transposon is an efficient non-viral tool for inserting transgenes into cells. Its broad utilization in gene therapy has been hampered by uncontrolled transposase gene activity and the inability to use transposase protein directly. The present invention concerns the finding that SB transposase spontaneously penetrates mammalian cells and can be delivered with transposon DNA to gene-modify various cell lines, embryonic, hematopoietic and induced pluripotent stem cells. The invention provides methods and compounds to apply the cell penetrating function of transposase in methods of genetically engineering cells as well as using the transposase as a shuttle for delivering cargo into a target cell or even into a target cell organelle. Genomic integration frequency can be titrated using the technology of the invention, which adds an additional layer of safety, opening opportunities for advanced applications in genetic engineering and gene therapy.

Abstract: The present invention relates to improved transposase polypeptides having increased solubility. The enzyme of the invention was developed based on the Sleeping Beauty (SB) transposase. The invention provides further nucleic acids, vectors and recombinant cells encoding or containing the improved transposase, as well as a transposase system. Furthermore provided are medical and non-medical uses of the transposase of the invention for gene delivery. The invention is in particular useful as a tool for gene delivery in genetically modified cell based therapeutic approaches for treating various diseases.