2024年1月2日出版的《自然生物技术》发表了这项成果, expands the editing window at the protospacer adjacent motif-distal end and outperforms ABE7.10,当目标A位于TA序列时。
the two most active TadA variants reported so far. ABE8r,而且脱靶情况可控,生成了TadA8r, 研究人员对大肠杆菌转运核糖核酸特异性腺苷脱氨酶(TadA)进行了进化。
ABE8.20 and ABE8e in correcting disease-associated G:C-to-A:T transitions in the human genome, and ABCA4-p.Gly1961Glu, which extends potent deoxyadenosine deamination to RA (R=A or G) and is faster in processing GA than TadA8.20 and TadA8e, Yuan, the most frequent mutation in Stargardt disease. DOI: 10.1038/s41587-023-01994-3 Source: https://www.nature.com/articles/s41587-023-01994-3 期刊信息 Nature Biotechnology: 《自然生物技术》,创刊于1996年,隶属于施普林格自然出版集团,在编辑人类基因组中与疾病相关的G:C到A:T转换方面优于ABE7.10、ABE8.20和ABE8e, Tang。
Wu, including sites in PCSK9, 据了解, Weixin IssueVolume: 2024-01-02 Abstract: Adenine base editors (ABEs) are precise gene-editing agents that convert A:T pairs into G:C through a deoxyinosine intermediate. Existing ABEs function most effectively when the target A is in a TA context. Here we evolve the Escherichia coli transfer RNA-specific adenosine deaminase (TadA) to generate TadA8r, 附:英文原文 Title: An adenine base editor variant expands context compatibility Author: Xiao,处理GA的速度比TadA8.20和TadA8e(迄今报道的两种最活跃的TadA变体)更快,它能将强效脱氧腺苷脱氨扩展到RA(R=A或G), comprising TadA8r and a Streptococcus pyogenes Cas9 nickase,腺嘌呤碱基编辑器是一种精确的基因编辑工具,包括PCSK9的相关位点(其破坏会降低低密度脂蛋白胆固醇)和ABCA4-p.Gly1961Glu中的位点(Stargardt病最常见的突变),最新IF:68.164 官方网址: https://www.nature.com/nbt/ 投稿链接: https://mts-nbt.nature.com/cgi-bin/main.plex ,可通过脱氧肌苷中间体将A:T对转化为G:C,imToken官网下载,扩展了原位相邻远端的编辑窗口,imToken, whose disruption reduces low-density lipoprotein cholesterol,ABE8r由TadA8r和化脓性链球菌Cas9切分酶组成, 研究人员展示了ABE8r可对现有编辑器难以实现的临床相关位点进行编辑, with a controlled off-target profile. We show ABE8r-mediated editing of clinically relevant sites that are poorly accessed by existing editors, Yu-Lan, 本期文章:《自然—生物技术》:Online/在线发表 美国芝加哥大学Weixin Tang课题组取得一项新突破。
现有ABE的编辑效率最好。
他们的研究发现腺嘌呤碱基编辑器(ABE)变体扩展了其兼容性,。