A Peroxide-Responding sRNA Evolved from a Peroxidase mRNA.
A Peroxide-Responding sRNA Evolved from a Peroxidase mRNA.
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DOI:
10.1093/molbev/msac020
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发表时间:
2022-02-03
影响因子:
10.7
通讯作者:
Raghavan R
中科院分区:
文献类型:
--
作者:
Krieger MC;Dutcher HA;Ashford AJ;Raghavan R
Small RNAs (sRNAs) are important gene regulators in bacteria, but it is unclear how new sRNAs originate and become part of regulatory networks that coordinate bacterial response to environmental stimuli. Using a covariance modeling-based approach, we analyzed the presence of hundreds of sRNAs in more than a thousand genomes across Enterobacterales, a bacterial order with a confluence of factors that allows robust genome-scale sRNA analyses: several well-studied organisms with fairly conserved genome structures, an established phylogeny, and substantial nucleotide diversity within a narrow evolutionary space. We discovered that a majority of sRNAs arose recently, and uncovered protein-coding genes as a potential source from which new sRNAs arise. A detailed investigation of the emergence of OxyS, a peroxide-responding sRNA, revealed that it evolved from a fragment of a peroxidase messenger RNA. Importantly, although it replaced the ancestral peroxidase, OxyS continues to be part of the ancestral peroxide-response regulon, indicating that an sRNA that arises from a protein-coding gene would inherently be part of the parental protein’s regulatory network. This new insight provides a fresh framework for understanding sRNA origin and regulatory integration in bacteria.
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DOI:
10.1093/bioinformatics/btr064
发表时间:
2011-04-01
期刊:
Bioinformatics (Oxford, England)
影响因子:
--
作者:
Grant CE;Bailey TL;Noble WS
通讯作者:
Noble WS
DOI:
10.1093/bioinformatics/btp163
发表时间:
2009-06-01
期刊:
Bioinformatics (Oxford, England)
影响因子:
--
作者:
Cock PJ;Antao T;Chang JT;Chapman BA;Cox CJ;Dalke A;Friedberg I;Hamelryck T;Kauff F;Wilczynski B;de Hoon MJ
通讯作者:
de Hoon MJ
影响因子:
14.9
作者:
Kalvari I;Argasinska J;Quinones-Olvera N;Nawrocki EP;Rivas E;Eddy SR;Bateman A;Finn RD;Petrov AI
通讯作者:
Petrov AI
影响因子:
5.8
作者:
Cohen, Ofir;Ashkenazy, Haim;Pupko, Tal
通讯作者:
Pupko, Tal
影响因子:
10.5
作者:
Imlay JA
通讯作者:
Imlay JA