Diverse endonucleolytic cleavage sites in the mammalian transcriptome depend upon microRNAs, Drosha, and additional nucleases.
Diverse endonucleolytic cleavage sites in the mammalian transcriptome depend upon microRNAs, Drosha, and additional nucleases.
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哺乳动物转录组中的多种核酸内切切割位点取决于 microRNA、Drosha 和其他核酸酶。
DOI:
10.1016/j.molcel.2010.06.001
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发表时间:
2010-06-25
期刊:
影响因子:
16
通讯作者:
Hannon, Gregory J.
中科院分区:
文献类型:
--
作者:
Karginov, Fedor V.;Cheloufi, Sihem;Chong, Mark M. W.;Stark, Alexander;Smith, Andrew D.;Hannon, Gregory J.
The lifespan of a mammalian mRNA is determined, in part, by the binding of regulatory proteins and small RNA-guided complexes. The conserved endonuclease activity of Argonaute2 requires extensive complementarity between a small RNA and its target and is not used by animal microRNAs, which pair with their targets imperfectly. Here, we investigate the endonucleolytic function of Ago2 and other nucleases by transcriptome-wide profiling of mRNA cleavage products retaining 5′-phosphate groups in mouse ES. We detect a prominent signature of Ago2-dependent cleavage events and validate several such targets. Unexpectedly, a broader class of Ago2-independent cleavage sites is also observed, indicating participation of additional nucleases in site-specific mRNA cleavage. Within this class, we identify a cohort of Drosha-dependent mRNA cleavage events that functionally regulate mRNA levels in mES cells, including one in the Dgcr8 mRNA. Together, these results highlight the underappreciated role of endonucleolytic cleavage in controlling mRNA fates in mammals.
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影响因子:
11.4
作者:
Elbashir, SM;Martinez, J;Tuschl, T
通讯作者:
Tuschl, T
影响因子:
9.2
作者:
Addo-Quaye, Charles;Eshoo, Tifani W.;Axtell, Michael J.
通讯作者:
Axtell, Michael J.
影响因子:
16.8
作者:
Haley, B;Zamore, PD
通讯作者:
Zamore, PD
DOI:
10.1093/bioinformatics/btp533
发表时间:
2009-11-01
期刊:
Bioinformatics (Oxford, England)
影响因子:
--
作者:
Smith AD;Chung WY;Hodges E;Kendall J;Hannon G;Hicks J;Xuan Z;Zhang MQ
通讯作者:
Zhang MQ
影响因子:
3.7
作者:
Shenoy A;Blelloch R
通讯作者:
Blelloch R