在哺乳动物细胞中，蛋白质的生物合成途径与细胞信号转导途径紧密相连。
These two tRNA synthetases link protein synthesis to a major cell signaling pathway in the given mammalian cells.
结论构建了人瘦素的哺乳动物细胞表达载体，并成功地在COS 7细胞中获得重组人瘦素的分泌表达。
Conclusion Cloning and expression recombinants of human leptin are obtained and secretive recombinant human leptin is successfully expressed in COS-7 cells.
因此最初RNA干扰技术在哺乳动物细胞中的应用受到很大的限制。
Accordingly, at the beginning the RNAi technique can't be applied in most of the mammalian cells.
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