This invention provides for a novel means of incorporating non-native amino acids into preselected positions of a protein using a cell-free synthesis system. The methods involve the use of non-orthogonal, native isoaccepting sense tRNAs that are encoded by the genetic code. Such methods allow for numerous non-native amino acids to be incorporated through the use of sense codons without having to rely upon orthogonal tRNA-synthetase pairs.
这项发明提供了一种新的方法,利用无细胞合成系统将非天然
氨基酸并入蛋白质的预选位点。该方法涉及使用非正交的、由遗传密码编码的本地同义tRNA,以实现通过使用同义密码子并不依赖于正交tRNA合成酶对的情况下并入多种非天然
氨基酸的目的。