Use of cyclosporin H (CsH) or a derivative thereof for increasing the efficiency of transduction of an isolated population of cells by a viral vector and/or increasing the efficiency of gene editing of an isolated population of cells when transduced by a viral vector.

Described is a recombinant expression vector that enables a cell transformed to contain and express the vector to use levulinic acid as a carbon source, thereby converting levulnic acid into 2-butanne. Also described are genetically modified cells transformed to contain and express the vector and methods of using the cells to produce 2-butanone from a medium containing levulinic acid.

Described is a recombinant expression vector that enables a cell transformed to contain and express the vector to use levulinic acid as a carbon source, thereby converting levulnic acid into 2-butanne. Also described are genetically modified cells transformed to contain and express the vector and methods of using the cells to produce 2-butanone from a medium containing levulinic acid.

Methods for identifying polypeptides, e.g. derived from HSV pUL22 protein, which when displayed on a capsid confer a desired property to viral particles comprising such capsids, as well as methods for designing and manufacturing viral vectors and viral particles with improved properties. The identification method is based on a capsid library in which the capsid variant does not form part of the viral genome which contains a barcode and in which the barcode associated with the capsid variant is determined by sequencing before the viral vector is used. Thus, the prevalence of the capsid variant in a biological sample may be determined by sequencing of the barcode alone.

Methods for identifying polypeptides, e.g. derived from HSV pUL22 protein, which when displayed on a capsid confer a desired property to viral particles comprising such capsids, as well as methods for designing and manufacturing viral vectors and viral particles with improved properties. The identification method is based on a capsid library in which the capsid variant does not form part of the viral genome which contains a barcode and in which the barcode associated with the capsid variant is determined by sequencing before the viral vector is used. Thus, the prevalence of the capsid variant in a biological sample may be determined by sequencing of the barcode alone.

Compositions which include polypeptides comprising at least one carboxy-terminal peptide (CTP) of chorionic gonadotropin attached to the carboxy terminus or amino terminus of an insulin-like growth factor 1 (IGF-1) or IGF-1 variant. Polynucleotides encoding the same are disclosed. Pharmaceutical compositions and pharmaceutical formulations comprising the polypeptides and polynucleotides of the invention and methods of using and producing same are also disclosed.

Compositions which include polypeptides comprising at least one carboxy-terminal peptide (CTP) of chorionic gonadotropin attached to the carboxy terminus or amino terminus of an insulin-like growth factor 1 (IGF-1) or IGF-1 variant. Polynucleotides encoding the same are disclosed. Pharmaceutical compositions and pharmaceutical formulations comprising the polypeptides and polynucleotides of the invention and methods of using and producing same are also disclosed.

Disclosed is a gene therapy DNA vector VTvaf17 for genetic modification of animal and human cells having SEQ ID No. 1, and methods for its synthesis, involving constructing vectors containing a promoter region of human elongation factor EF1A, a polylinker with sites for restriction endonucleases, a transcription terminator, a polyadenylation sequence of human growth factor, a regulatory element of transposon Tn10 allowing for antibiotic-free positive selection, an origin of replication, and a kanamycin resistance gene. Escherichia coli strain SCS110-AF is also provided by the present invention. The method for creating the strain involves constructing a linear DNA fragment containing regulatory element of transposon Tn10, a levansucrase gene, sacB, a chloramphenicol resistance gene, and two homologous sequences. The E. coli cells are transformed by electroporation and clones surviving chloramphenicol are chosen. The invention further discloses Escherichia coli strain SCS110-AF/VTvaf17, which carries DNA vector VTvaf17, and methods for its synthesis.

Disclosed is a gene therapy DNA vector VTvaf17 for genetic modification of animal and human cells having SEQ ID No. 1, and methods for its synthesis, involving constructing vectors containing a promoter region of human elongation factor EF1A, a polylinker with sites for restriction endonucleases, a transcription terminator, a polyadenylation sequence of human growth factor, a regulatory element of transposon Tn10 allowing for antibiotic-free positive selection, an origin of replication, and a kanamycin resistance gene. Escherichia coli strain SCS110-AF is also provided by the present invention. The method for creating the strain involves constructing a linear DNA fragment containing regulatory element of transposon Tn10, a levansucrase gene, sacB, a chloramphenicol resistance gene, and two homologous sequences. The E. coli cells are transformed by electroporation and clones surviving chloramphenicol are chosen. The invention further discloses Escherichia coli strain SCS110-AF/VTvaf17, which carries DNA vector VTvaf17, and methods for its synthesis.

A recombinant bacterium for producing L-lysine, a construction method thereof, and a method for producing L-lysine by using the recombinant bacterium. The recombinant bacterium has increased expression and/or activity of asparaginase compared to a starting bacterium.