Pathogenic Signal Sequence Mutations in Progranulin Disrupt SRP Interactions Required for mRNA Stability.
Pathogenic Signal Sequence Mutations in Progranulin Disrupt SRP Interactions Required for mRNA Stability.
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DOI:
10.1016/j.celrep.2018.05.003
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发表时间:
2018-06-05
期刊:
影响因子:
8.8
通讯作者:
Thomas PJ
中科院分区:
文献类型:
--
作者:
Pinarbasi ES;Karamyshev AL;Tikhonova EB;Wu IH;Hudson H;Thomas PJ
Cells have evolved quality control pathways to prevent the accumulation of improperly localized proteins, which are often toxic. One of these pathways, regulation of aberrant protein production (RAPP), recognizes aberrant secretory proteins during translation and degrades the associated mRNA. Here, we demonstrate endogenous RAPP substrates. Haploinsufficiency of the secretory protein progranulin (GRN) is associated with the neurodegenerative disease frontotemporal lobar degeneration (FTLD). Our results show FTLD-associated GRN mutations W7R and A9D disrupt co-translational interaction with a targeting factor, signal recognition particle (SRP). This triggers RAPP and initiates specific mRNA degradation. Conversely, wild-type GRN and the naturally occurring polymorphism V5L GRN are efficiently expressed and secreted. Thus, RAPP plays a role in the molecular pathology of A9D GRN and W7R GRN. Progranulin mutations, which reduce its secretion, cause the disease FTLD (frontotemporal lobar degeneration). Here, Pinarbasi et al. show that one such mutation, A9D, prevents recruitment of the trafficking factor SRP (signal recognition particle). This triggers a quality control response, which results in degradation of A9D mRNA.
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影响因子:
3.9
作者:
Symoens, Sofie;Malfait, Fransiska;De Paepe, Anne
通讯作者:
De Paepe, Anne
DOI:
10.1083/jcb.91.2.545
发表时间:
1981-11
期刊:
The Journal of cell biology
影响因子:
--
作者:
Walter P;Ibrahimi I;Blobel G
通讯作者:
Blobel G
影响因子:
4.2
作者:
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Santana, Isabel
DOI:
10.1093/brain/awn352
发表时间:
2009-03
期刊:
Brain : a journal of neurology
影响因子:
--
作者:
Finch N;Baker M;Crook R;Swanson K;Kuntz K;Surtees R;Bisceglio G;Rovelet-Lecrux A;Boeve B;Petersen RC;Dickson DW;Younkin SG;Deramecourt V;Crook J;Graff-Radford NR;Rademakers R
通讯作者:
Rademakers R
影响因子:
64.8
作者:
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通讯作者:
Hutton, Mike