Identification of a Nonsense-Mediated Decay pathway at the Endoplasmic Reticulum
Identification of a Nonsense-Mediated Decay pathway at the Endoplasmic Reticulum
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内质网无义介导的衰变途径的鉴定
DOI:
10.1101/2020.02.24.954453
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Longman D
中科院分区:
文献类型:
--
作者:
Longman D
Nonsense-mediated decay (NMD) is a translation-dependent RNA quality control mechanism that occurs in the cytoplasm. However, it is unknown how NMD regulates the stability of RNAs translated at the Endoplasmic Reticulum (ER). Here, we identify a localized NMD pathway dedicated to ER-translated mRNAs. We previously identified NBAS, a component of the Syntaxin 18 complex involved in Golgi-to-ER trafficking, as a novel NMD factor. Here, we show that NBAS fulfils an independent function in NMD. This ER-NMD pathway requires the interaction of NBAS with the core NMD factor UPF1, which is partially localized at the ER in the proximity of the translocon. NBAS and UPF1 co-regulate the stability of ER-associated transcripts, in particular those associated with the cellular stress response. We propose a model where NBAS recruits UPF1 to the membrane of the ER and activates an ER-dedicated NMD pathway, thus providing an ER protective function by ensuring quality control of ER-translated mRNAs.Graphical AbstractHIGHLIGHTSNBAS is an NMD factor that localizes to the membrane of the endoplasmic reticulum (ER)NBAS has dual, independent, roles in Golgi-to-ER retrograde transport and in ER-NMDNBAS recruits the core NMD factor UPF1 to the membrane of the ERThe ER-NMD pathway targets for degradation mRNAs that are translated at the ER
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DOI:
10.1093/bioinformatics/btu638
发表时间:
2015-01-15
期刊:
Bioinformatics (Oxford, England)
影响因子:
--
作者:
Anders S;Pyl PT;Huber W
通讯作者:
Huber W
DOI:
10.1007/978-1-61779-005-8_19
发表时间:
2011
期刊:
Methods in molecular biology (Clifton, N.J.)
影响因子:
--
作者:
Jagannathan, Sujatha;Nwosu, Christine;Nicchitta, Christopher V
通讯作者:
Nicchitta, Christopher V
DOI:
10.1073/pnas.1000993107
发表时间:
2010-06-01
影响因子:
11.1
作者:
Buchwald, Gretel;Ebert, Judith;Conti, Elena
通讯作者:
Conti, Elena
影响因子:
14.9
作者:
Applequist, SE;Selg, M;Jack, HM
通讯作者:
Jack, HM
影响因子:
14.9
作者:
Anastasaki C;Longman D;Capper A;Patton EE;Cáceres JF
通讯作者:
Cáceres JF