Abstract: The present invention relates to a method of modifying at least one gene in a cell via CRISPR/Cas, wherein the at least one gene has at least three alleles. The present invention further relates to cells obtainable by the method of the invention. Additionally, the present invention provides a method of producing a protein in a cell obtainable by the method of modifying at least one gene of the invention. Moreover, the invention relates to proteins obtainable by the method of producing a protein and use thereof, for example in therapy.

Abstract: The present invention relates to a method of modifying at least one gene in a cell via CRISPR/Cas, wherein the at least one gene has at least three alleles. The present invention further relates to cells obtainable by the method of the invention. Additionally, the present invention provides a method of producing a protein in a cell obtainable by the method of modifying at least one gene of the invention. Moreover, the invention relates to proteins obtainable by the method of producing a protein and use thereof, for example in therapy.

Abstract: The present invention relates to a method of modifying at least one gene in a cell via CRISPR/Cas, wherein the at least one gene has at least three alleles. The present invention further relates to cells obtainable by the method of the invention. Additionally, the present invention provides a method of producing a protein in a cell obtainable by the method of modifying at least one gene of the invention. Moreover, the invention relates to proteins obtainable by the method of producing a protein and use thereof, for example in therapy.

Abstract: The present invention relates to a method of modifying at least one gene in a cell via CRISPR/Cas, wherein the at least one gene has at least three alleles. The present invention further relates to cells obtainable by the method of the invention. Additionally, the present invention provides a method of producing a protein in a cell obtainable by the method of modifying at least one gene of the invention. Moreover, the invention relates to proteins obtainable by the method of producing a protein and use thereof, for example in therapy.

Abstract: The invention relates to a method for the production of a eukaryotic cell selectable by inactivation or reduction of an endogenous gene function, comprising the steps of (a) introduction of one or more vectors into the cell and (b) expression of a siRNA and preferably shRNA coded by the one or more vectors, directed against an endogenous selectable gene and inactivating same, said siRNA or shRNA being the transcription product of an RNAi selection cassette, the selection cassette comprising a section of at least 19 nucleotides of the transcribed region of the gene, said selection being operatively linked to a promoter and a transcription termination signal.