Dr Wang has managed to reassign one of the stop codons in E. coli, the bacterial workhorse of geneticists, to recognise an unnatural amino acid.

王博士已经成功的让大肠杆菌(遗传学家的常用工作菌种)中的一个密码子重新分配去编码一个非自然氨基酸。

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Indeed, Dr Wang tried that by switching an amino acid in the plug for a larger one.

ECONOMIST: Synthetic biology: Expanded vocabulary | The