There is provided inter alia a process for stabilizing a eukaryotic cell line which expresses PylRS and tRNAPyl and which is suitable for incorporation of a gene encoding a target protein containing one or more non-natural amino acids encoded by a nonsense codon which comprises culturing said cell line under conditions in which the adverse effect of tRNAPyl expression on cell viability and/or cell growth is reduced or eliminated.
除其他外,还提供了一种稳定真核
细胞系的方法,该
细胞系表达 PylRS 和 tRNAPyl,适于加入编码含有一个或多个由无意义密码子编码的非
天然氨基酸的目标蛋白质的
基因,该方法包括在减少或消除 tRNAPyl 表达对细胞活力和/或细胞生长的不利影响的条件下培养所述
细胞系。