This invention provides compositions and methods for generating components of protein biosynthetic machinery including orthogonal tRNAs, orthogonal aminoacyl-tRNA synthetases, and orthogonal pairs of tRNAs/synthetases. Methods for identifying orthogonal pairs are also provided. These components can be used to incorporate unnatural amino acids into proteins in vivo.
                            本发明提供了用于生成蛋白质
生物合成机制成分的组合物和方法,这些成分包括正交 tRNA、正交
氨基酰-tRNA 合成酶和正交对 tRNA/合成酶。还提供了识别正交对的方法。这些成分可用于在体内将非天然
氨基酸结合到蛋白质中。