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生命的“字母表”被AI简化在生命的“字母表”中，20种标准氨基酸几乎被视为不可动摇的基础。然而，这一看似铁律的规则，正在被生成式人工智能悄然改写。来自哥伦比亚大学的Harris H. Wang团队，展示了一种颇具颠覆性的生物工程路径：成功构建出一种仅使用19种氨基酸的大肠杆菌细胞，并且这种“删减版生命系统”能够稳定存活和生长。被移除的是在天然蛋白质中广泛存在的异亮氨酸（Ile）。2026年4月30日，相关研究成果发表于《Science》。

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（图片来源：《Science》）

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