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生物通
29 天
《Nature Microbiology》可诱导转座子突变测序技术突破宿主瓶颈:揭示 ...
最引人注目的发现出现在"CRISPR抑制的毒素在感染中激活"部分。研究首次在C. rodentium的cas3-casA间隔区鉴定出96bp的隐蔽毒素(CreT),其表达受Cascade复合物(CasABCDE)和crRNA样抗毒素(CreA)调控。当CasD缺失时,毒素激活导致定植缺陷,而整个CRISPR位点缺失反而恢复 ...
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