Complemented Palindromic Small RNAs First Discovered from SARS Coronavirus.
Complemented Palindromic Small RNAs First Discovered from SARS Coronavirus.
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作者:
Liu C;Chen Z;Hu Y;Ji H;Yu D;Shen W;Li S;Ruan J;Bu W;Gao S
In this study, we report for the first time the existence of complemented palindromic small RNAs (cpsRNAs) and propose that cpsRNAs and palindromic small RNAs (psRNAs) constitute a novel class of small RNAs. The first discovered 19-nt cpsRNA UUAACAAGCUUGUUAAAGA, named SARS-CoV-cpsR-19, was detected from a 22-bp DNA complemented palindrome TCTTTAACAAGCTTGTTAAAGA in the severe acute respiratory syndrome coronavirus (SARS-CoV) genome. The phylogenetic analysis supported that this DNA complemented palindrome originated from bat betacoronavirus. The results of RNA interference (RNAi) experiments showed that one 19-nt segment corresponding to SARS-CoV-cpsR-19 significantly induced cell apoptosis. Using this joint analysis of the molecular function and phylogeny, our results suggested that SARS-CoV-cpsR-19 could play a role in SARS-CoV infection or pathogenesis. The discovery of cpsRNAs has paved a way to find novel markers for pathogen detection and to reveal the mechanisms underlying infection or pathogenesis from a different point of view. Researchers can use cpsRNAs to study the infection or pathogenesis of pathogenic viruses when these viruses are not available. The discovery of psRNAs and cpsRNAs, as a novel class of small RNAs, also inspire researchers to investigate DNA palindromes and DNA complemented palindromes with lengths of psRNAs and cpsRNAs in viral genomes.
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影响因子:
--
作者:
Wang F;Sun Y;Ruan J;Chen R;Chen X;Chen C;Kreuze JF;Fei Z;Zhu X;Gao S
通讯作者:
Gao S
影响因子:
30.3
作者:
Morales L;Oliveros JC;Fernandez-Delgado R;tenOever BR;Enjuanes L;Sola I
通讯作者:
Sola I
影响因子:
3.7
作者:
Chen Z;Sun Y;Yang X;Wu Z;Guo K;Niu X;Wang Q;Ruan J;Bu W;Gao S
通讯作者:
Gao S
影响因子:
6.4
作者:
Peng X;Gralinski L;Ferris MT;Frieman MB;Thomas MJ;Proll S;Korth MJ;Tisoncik JR;Heise M;Luo S;Schroth GP;Tumpey TM;Li C;Kawaoka Y;Baric RS;Katze MG
通讯作者:
Katze MG
影响因子:
3.5
作者:
Niu X;Sun Y;Chen Z;Li R;Padmanabhan C;Ruan J;Kreuze JF;Ling K;Fei Z;Gao S
通讯作者:
Gao S