EPISODE · Aug 24, 2026 · 14 MIN
1483-进化驱动设计的微型RNA引导核酸酶
from 聊聊Sci
这项研究介绍了一种利用人工智能设计非自然RNA引导核酸酶（SynTnpBs）的创新策略。研究人员将结构逆向折叠模型与进化约束信息相结合，成功改造了自然界中微小的TnpB蛋白，突破了进化对基因编辑工具的限制。实验表明，这些通过AI设计的变体在细菌、植物和人类细胞中表现出等同甚至超越天然蛋白的编辑效率。通过冷冻电子显微镜分析，研究揭示了AI生成的残基如何通过新的化学接触稳定蛋白与核酸的相互作用。该成果不仅扩展了可设计的蛋白质空间，还为开发精密、高效的基因编辑技术提供了新路径。References:Skopintsev P, Esain-Garcia I, DeTurk E C, et al. Structure and evolution-guided design of minimal RNA-guided nucleases[J]. Science, 2026, 393(6808): 313-318.前往小宇宙评论区与主播互动
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1483-进化驱动设计的微型RNA引导核酸酶
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