CRISPR RNA maturation by trans-encoded small RNA and host factor RNase III.
CRISPR RNA maturation by trans-encoded small RNA and host factor RNase III.
复制标题
通过反式编码的小 RNA 和宿主因子 RNase III 进行 CRISPR RNA 成熟。
DOI:
10.1038/nature09886
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发表时间:
2011-03-31
期刊:
影响因子:
64.8
通讯作者:
Charpentier, Emmanuelle
中科院分区:
文献类型:
--
作者:
Deltcheva, Elitza;Chylinski, Krzysztof;Sharma, Cynthia M.;Gonzales, Karine;Chao, Yanjie;Pirzada, Zaid A.;Eckert, Maria R.;Vogel, Joerg;Charpentier, Emmanuelle
CRISPR/Cas systems constitute a widespread class of immunity systems that protect bacteria and archaea against phages and plasmids, and commonly use repeat/spacer-derived short crRNAs to silence foreign nucleic acids in a sequence-specific manner. Although the maturation of crRNAs represents a key event in CRISPR activation, the responsible endoribonucleases (CasE, Cas6, Csy4) are missing in many CRISPR/Cas subtypes. Here, differential RNA sequencing of the human pathogen Streptococcus pyogenes uncovered tracrRNA, a trans-encoded small RNA with 24 nucleotide complementarity to the repeat regions of crRNA precursor transcripts. We show that tracrRNA directs the maturation of crRNAs by the activities of the widely conserved endogenous RNase III and the CRISPR-associated Csn1 protein; all these components are essential to protect S. pyogenes against prophage-derived DNA. Our study reveals a novel pathway of small guide RNA maturation and the first example of a host factor (RNase III) required for bacterial RNA-mediated immunity against invaders.
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DOI:
10.1093/bioinformatics/btp250
发表时间:
2009-08-01
期刊:
Bioinformatics (Oxford, England)
影响因子:
--
作者:
Darty K;Denise A;Ponty Y
通讯作者:
Ponty Y
影响因子:
3.2
作者:
Deveau, Helene;Barrangou, Rodolphe;Moineau, Sylvain
通讯作者:
Moineau, Sylvain
DOI:
10.1126/science.1192272
发表时间:
2010-09-10
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Haurwitz RE;Jinek M;Wiedenheft B;Zhou K;Doudna JA
通讯作者:
Doudna JA
DOI:
10.1126/science.1159689
发表时间:
2008-08-15
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Brouns SJ;Jore MM;Lundgren M;Westra ER;Slijkhuis RJ;Snijders AP;Dickman MJ;Makarova KS;Koonin EV;van der Oost J
通讯作者:
van der Oost J
影响因子:
56.9
作者:
Andersson, Anders F.;Banfield, Jillian F.
通讯作者:
Banfield, Jillian F.