Human Argonaute2 and Argonaute3 are catalytically activated by different lengths of guide RNA.
Human Argonaute2 and Argonaute3 are catalytically activated by different lengths of guide RNA.
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人Argonaute2和Argonaute3被不同长度的引导RNA催化激活。
DOI:
10.1073/pnas.2015026117
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发表时间:
2020-11-17
影响因子:
11.1
通讯作者:
Nakanishi K
中科院分区:
文献类型:
--
作者:
Park MS;Sim G;Kehling AC;Nakanishi K
RNA interfering is a eukaryote-specific gene silencing by 20∼23-nucleotide (nt) microRNAs and small interfering RNAs that recruit Argonaute proteins to complementary RNAs for degradation. In humans, Argonaute2 (AGO2) has been known as the only slicer while Argonaute3 (AGO3) barely cleaves RNAs. Therefore, the intrinsic slicing activity of AGO3 remains controversial and a long-standing question. Here, we report 14-nt 3′ end-shortened variants of let-7a, miR-27a, and specific miR-17–92 families that make AGO3 an extremely competent slicer, increasing target cleavage up to ∼82-fold in some instances. These RNAs, named cleavage-inducing tiny guide RNAs (cityRNAs), conversely lower the activity of AGO2, demonstrating that AGO2 and AGO3 have different optimum guide lengths for target cleavage. Our study sheds light on the role of tiny guide RNAs.
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影响因子:
14.9
作者:
Park MS;Phan HD;Busch F;Hinckley SH;Brackbill JA;Wysocki VH;Nakanishi K
通讯作者:
Nakanishi K
影响因子:
7.3
作者:
Nakanishi, Kotaro
通讯作者:
Nakanishi, Kotaro
影响因子:
4.8
作者:
Dayeh, Daniel M.;Kruithoff, Bradley C.;Nakanishi, Kotaro
通讯作者:
Nakanishi, Kotaro
影响因子:
64.5
作者:
Lima, Walt F.;Prakash, Thazha P.;Crooke, Stanley T.
通讯作者:
Crooke, Stanley T.
影响因子:
56.9
作者:
Liu, JD;Carmell, MA;Hannon, GJ
通讯作者:
Hannon, GJ