晨间信号Morning Signal
《科学》 第393卷 第6817期 · 2026年9月17日 · 中文解读

CRISPR-Cas起源中的非连续RNA引导DNA识别密码

A noncontiguous code for RNA-guided DNA recognition at the origin of CRISPR-Cas · Peter H. Yoon, Kenneth J. Loi, Zeyuan Terry Zhang, Trevor A. Docter, Santiago C. Lopez, Conner J. Langeberg, Muhammad Moez Ur-Rehman, Kamakshi Vohra, Zehan Zhou, Isabel Esain-Garcia, Marena I. Trinidad, Honglue Shi, Ron Boger, Peter Y. Wang, Benjamin A. Adler, Stephen G. Brohawn, Jennifer A. Doudna
约 10 分钟Microbiology在小程序里点播,20 到 60 分钟做好
这篇讲什么
本研究报道了Viral Interference Programmable Repeat(VIPR)系统,其Vipr蛋白是早期CRISPR-Cas效应蛋白的祖先,VIPR RNA通过非连续密码识别双链DNA,表明适应性免疫可能起源于病毒间的古老战争。
原文开头
Peter H. Yoon1,2†, Kenneth J. Loi2,3†, Zeyuan Terry Zhang2,3, Trevor A. Docter1, Santiago C. Lopez1, Conner J. Langeberg1,4, Muhammad Moez Ur-Rehman1,2, Kamakshi Vohra1,4‡, Zehan Zhou1,2, Isabel Esain-Garcia2,4,5, Marena I. Trinidad2,6, Honglue Shi1,4, Ron Boger2,3, Peter Y. Wang2,5, Benjamin A. Adler2, Stephen G. Brohawn1,4,7, Jennifer A. Doudna1,2,3,4,5,8,9,10* CRISPR-Cas provides RNA-mediated adaptive immunity, but how its first RNA-guided effector arose is unclear. In this study, we report the discovery of Viral Interference Programmable Repeat (VIPR) systems consisting of a Vipr protein ancestral to the earliest CRISPR-Cas effectors and VIPR RNAs (vrRNAs) comprising alternating GGY/NN motifs. …
摘自《科学》(Science)第393卷 第6817期 · 2026年9月17日,Peter H. Yoon, Kenneth J. Loi, Zeyuan Terry Zhang, Trevor A. Docter, Santiago C. Lopez, Conner J. Langeberg, Muhammad Moez Ur-Rehman, Kamakshi Vohra, Zehan Zhou, Isabel Esain-Garcia, Marena I. Trinidad, Honglue Shi, Ron Boger, Peter Y. Wang, Benjamin A. Adler, Stephen G. Brohawn, Jennifer A. Doudna。仅引用开头一小段供了解文章,版权归原刊所有,全文请阅读原刊。
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