Nonstop mRNAs generate a ground state of mitochondrial gene expression noise.
Nonstop mRNAs generate a ground state of mitochondrial gene expression noise.
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DOI:
10.1126/sciadv.abq5234
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发表时间:
2022-11-16
期刊:
影响因子:
13.6
通讯作者:
中科院分区:
文献类型:
--
作者:
A stop codon within the mRNA facilitates coordinated termination of protein synthesis, releasing the nascent polypeptide from the ribosome. This essential step in gene expression is impeded with transcripts lacking a stop codon, generating nonstop ribosome complexes. Here, we use deep sequencing to investigate sources of nonstop mRNAs generated from the human mitochondrial genome. We identify diverse types of nonstop mRNAs on mitochondrial ribosomes that are resistant to translation termination by canonical release factors. Failure to resolve these aberrations by the mitochondrial release factor in rescue (MTRFR) imparts a negative regulatory effect on protein synthesis that is associated with human disease. Our findings reveal a source of underlying noise in mitochondrial gene expression and the importance of responsive ribosome quality control mechanisms for cell fitness and human health. Deep sequencing analysis of the mitochondrial transcriptome identifies sources of non-stop mRNAs and role of MTRFR.
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影响因子:
9.8
作者:
Hochberg I;Demain LAM;Richer J;Thompson K;Urquhart JE;Rea A;Pagarkar W;Rodríguez-Palmero A;Schlüter A;Verdura E;Pujol A;Quijada-Fraile P;Amberger A;Deutschmann AJ;Demetz S;Gillespie M;Belyantseva IA;McMillan HJ;Barzik M;Beaman GM;Motha R;Ng KY;O'Sullivan J;Williams SG;Bhaskar SS;Lawrence IR;Jenkinson EM;Zambonin JL;Blumenfeld Z;Yalonetsky S;Oerum S;Rossmanith W;Genomics England Research Consortium;Yue WW;Zschocke J;Munro KJ;Battersby BJ;Friedman TB;Taylor RW;O'Keefe RT;Newman WG
通讯作者:
Newman WG
DOI:
10.1038/nrm4069
发表时间:
2015-11
期刊:
Nature reviews. Molecular cell biology
影响因子:
--
作者:
Brar GA;Weissman JS
通讯作者:
Weissman JS
DOI:
10.1126/science.aaa1193
发表时间:
2015-04-03
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Amunts A;Brown A;Toots J;Scheres SHW;Ramakrishnan V
通讯作者:
Ramakrishnan V
影响因子:
4.5
作者:
Akabane S;Ueda T;Nierhaus KH;Takeuchi N
通讯作者:
Takeuchi N
影响因子:
14.9
作者:
Federhen S
通讯作者:
Federhen S