Global 5'-UTR RNA structure regulates translation of a SERPINA1 mRNA.
Global 5'-UTR RNA structure regulates translation of a SERPINA1 mRNA.
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DOI:
10.1093/nar/gkac739
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发表时间:
2022-09-23
影响因子:
14.9
通讯作者:
Weeks, Kevin M.
中科院分区:
文献类型:
--
作者:
Grayeski, Philip J.;Weidmann, Chase A.;Kumar, Jayashree;Lackey, Lela;Mustoe, Anthony M.;Busan, Steven;Laederach, Alain;Weeks, Kevin M.
SERPINA1 mRNAs encode the protease inhibitor α-1-antitrypsin and are regulated through post-transcriptional mechanisms. α-1-antitrypsin deficiency leads to chronic obstructive pulmonary disease (COPD) and liver cirrhosis, and specific variants in the 5′-untranslated region (5′-UTR) are associated with COPD. The NM_000295.4 transcript is well expressed and translated in lung and blood and features an extended 5′-UTR that does not contain a competing upstream open reading frame (uORF). We show that the 5′-UTR of NM_000295.4 folds into a well-defined multi-helix structural domain. We systematically destabilized mRNA structure across the NM_000295.4 5′-UTR, and measured changes in (SHAPE quantified) RNA structure and cap-dependent translation relative to a native-sequence reporter. Surprisingly, despite destabilizing local RNA structure, most mutations either had no effect on or decreased translation. Most structure-destabilizing mutations retained native, global 5′-UTR structure. However, those mutations that disrupted the helix that anchors the 5′-UTR domain yielded three groups of non-native structures. Two of these non-native structure groups refolded to create a stable helix near the translation initiation site that decreases translation. Thus, in contrast to the conventional model that RNA structure in 5′-UTRs primarily inhibits translation, complex folding of the NM_000295.4 5′-UTR creates a translation-optimized message by promoting accessibility at the translation initiation site.
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DOI:
10.1093/bioinformatics/btp250
发表时间:
2009-08-01
期刊:
Bioinformatics (Oxford, England)
影响因子:
--
作者:
Darty K;Denise A;Ponty Y
通讯作者:
Ponty Y
影响因子:
5.3
作者:
Dmitriev, Sergey E.;Andreev, Dmitri E.;Shatsky, Ivan N.
通讯作者:
Shatsky, Ivan N.
影响因子:
4.5
作者:
Babendure, JR;Babendure, JL;Tsien, RY
通讯作者:
Tsien, RY
影响因子:
15.9
作者:
CRYSTAL, RG
通讯作者:
CRYSTAL, RG
影响因子:
5.3
作者:
GOOSSEN, B;HENTZE, MW
通讯作者:
HENTZE, MW