Structure and mechanism of the CMR complex for CRISPR-mediated antiviral immunity.
Structure and mechanism of the CMR complex for CRISPR-mediated antiviral immunity.
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DOI:
10.1016/j.molcel.2011.12.013
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发表时间:
2012-02-10
期刊:
影响因子:
16
通讯作者:
White, Malcolm F.
中科院分区:
文献类型:
--
作者:
Zhang, Jing;Rouillon, Christophe;Kerou, Melina;Reeks, Judith;Brugger, Kim;Graham, Shirley;Reimann, Julia;Cannone, Giuseppe;Liu, Huanting;Albers, Sonja-Verena;Naismith, James H.;Spagnolo, Laura;White, Malcolm F.
The prokaryotic Clusters of Regularly Interspaced Palindromic Repeats (CRISPR) system utilizes genomically-encoded CRISPR RNA (crRNA), derived from invading viruses and incorporated into ribonucleoprotein complexes with CRISPR-associated (CAS) proteins, to target and degrade viral DNA or RNA on subsequent infection. RNA is targeted by the CMR complex. In Sulfolobus solfataricus, this complex is composed of seven CAS protein subunits (Cmr1-7) and carries a diverse “payload” of targeting crRNA. The crystal structure of Cmr7 and low resolution structure of the complex are presented. S. solfataricus CMR cleaves RNA targets in an endonucleolytic reaction at UA dinucleotides. This activity is dependent on the 8-nucleotide repeat-derived 5′ sequence in the crRNA, but not on the presence of a proto-spacer associated motif (PAM) in the target. Both target and guide RNAs can be cleaved, although a single molecule of guide RNA can support the degradation of multiple targets.
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影响因子:
3.2
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影响因子:
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影响因子:
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通讯作者:
Charpentier, Emmanuelle
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