Determination of the role of DDX3 a factor involved in mammalian RNAi pathway using an shRNA-expression library.
Determination of the role of DDX3 a factor involved in mammalian RNAi pathway using an shRNA-expression library.
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DOI:
10.1371/journal.pone.0059445
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发表时间:
2013
期刊:
影响因子:
3.7
通讯作者:
Miyagishi M
中科院分区:
文献类型:
--
作者:
Kasim V;Wu S;Taira K;Miyagishi M
RNA interference (RNAi) is an endogenous RNA-destruction phenomenon induced by certain double-stranded RNAs (dsRNAs). In RNAi, dsRNAs are processed into small interfering RNAs (siRNAs) which in turn trigger the cleavage of the target mRNA. Here, using a short hairpin RNA-expression library, we identified a DEAD-box helicase 3, DDX3, as an essential factor involved in RNAi pathway and revealed that DDX3 is colocalized with Ago2, an essential factor in RNAi pathway that cleaves target mRNA. Results of experiments with a dominant negative mutant of DDX3 further confirmed that this factor affects the RNAi activity. Together, DDX3 functions to assure mammalian RNAi pathway. Together, our results indicate that DDX3 is a new key molecule to understand the molecular mechanism underlying RNAi pathway in mammals.
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DOI:
10.1159/000015022
发表时间:
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期刊:
CYTOGENETICS AND CELL GENETICS
影响因子:
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DOI:
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