相关实验视频
Updated: Sep 12, 2025

Substrate Generation for Endonucleases of CRISPR/Cas Systems
Published on: September 8, 2012
Cas13跨核酶活动的RNA目标独立非正规激活 (RINCA)
Wenjun Liu1, Xuena Zhu2, Yuanyuan Xue2
1Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310003, China; Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310003, China; The Innovation Center for the Study of Pancreatic Diseases of Zhejiang Province, Zhejiang University Cancer Center, Hangzhou 310003, China; MOE Joint International Research Laboratory of Pancreatic Diseases, Hangzhou 310003, China.
我们在Cas13中发现了RNA目标独立的非正规激活 (RINCA),使CRISPR的新应用成为可能. 优化的Cas13变种降低了毒性,改善了生物传感,而RINCA系统则提供了治疗潜力.
科学领域:
- 分子生物学分子生物学
- 生物技术是生物技术.
- 基因编辑 基因编辑
背景情况:
- 克里斯普尔-卡斯13系统是RNA操纵的强大工具.
- 意外的Cas13活性对安全的体内应用构成风险.
- 了解Cas13激活机制对于技术进步至关重要.
研究的目的:
- 为了发现Cas13.的RNA目标独立,非正规激活 (RINCA).
- 为了阐明RINCA的结构基础.
- 开发缓解RINCA的策略,并将其用于新型应用.
主要方法:
- 在Cas13中RINCA的识别和结构阐明.
- 对40多种Cas13a突变体进行查,以减少RINCA.
- 具有RINCA能力的LwCas13a/ap-crRNA系统的工程与RNA吸收体.
主要成果:
- 单独通过crRNA发现RINCA激活Cas13,并进行了结构性特征.
- 优化的Cas13a变种显示RINCA减少,生物传感改善,并在体内细胞毒性降低.
- 设计的RINCA-能够的系统证明了代谢物感应,RNA降解和抗癌疗效.
结论:
- 对于基于Cas13的技术,RINCA既带来了挑战,也带来了机遇.
- 已经开发了缓解策略和基于RINCA的新型应用程序.
- 这项研究促进了CRISPR-Cas13的安全和有效使用.
更多相关视频
06:59Using Next Generation Sequencing to Identify Mutations Associated with Repair of a CAS9-induced Double Strand Break Near the CD4 Promoter
Published on: March 31, 2022
07:59Rapid and Specific Detection of Acinetobacter baumannii Infections Using a Recombinase Polymerase Amplification/Cas12a-based System
Published on: April 25, 2025
相关概念视频
CRISPR and crRNAs
The CRISPR-Cas system stores a copy of foreign DNA in the host genome and uses it to identify the foreign DNA upon reinfection. CRISPR-Cas has three different...
Caspases
CRISPR
Translesion DNA Polymerases
TLS polymerases are found in all three domains of life - archaea, bacteria, and eukaryotes. Of the different classes of TLS polymerases, members of the Y family are fitted with specialized structures that...
CRISPR/Cas9 Genome Editing
Regulation of the Unfolded Protein Response