期刊
MOLECULAR MICROBIOLOGY
卷 78, 期 6, 页码 1327-1331出版社
WILEY-BLACKWELL
DOI: 10.1111/j.1365-2958.2010.07428.x
关键词
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资金
- DFG [SPP1258]
- BMBF NGFN+
P>Although most bacterial small RNAs act to repress target mRNAs, some also activate messengers. The predominant mode of activation has been seen in 'anti-antisense' regulation whereby a small RNA prevents the formation of an inhibitory 5' mRNA structure that otherwise impairs translational initiation and protein synthesis. The translational activation might also stabilize the target yet this was considered a secondary effect in the examples known thus far. Two recent papers in Molecular Microbiology investigate post-transcriptional activation of collagenase mRNA by Clostridium VR-RNA, and streptokinase mRNA by Streptococcus FasX RNA, to suggest that small RNAs exert positive regulation of virulence genes primarily at the level of mRNA stabilization.
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