| abstract |
Herein is reported a method for determining the introduction of a nucleic acid into the genome of a mammalian cell, whereby the mammalian cell comprises one or two transcriptionally active alleles of a DPH1, DPH2, DPH4 and/or DPH5 gene, comprising the steps of transfecting the mammalian cell with one or more plasmids comprising the nucleic acid to be introduced, and the elements required for gene editing of said DPH gene, cultivating the transfected cell in the presence of a DPH gene transcription sensitive toxin, and thereby determining the introduction of a nucleic acid into the genome of the mammalian cell if the transfected cells is viable in the presence of the toxin. |