TDP-43 stabilises the processing intermediates of mitochondrial transcripts.
TDP-43 stabilises the processing intermediates of mitochondrial transcripts.
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DOI:
10.1038/s41598-017-06953-y
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发表时间:
2017-08-09
影响因子:
4.6
通讯作者:
Takahashi N
中科院分区:
文献类型:
--
作者:
Izumikawa K;Nobe Y;Yoshikawa H;Ishikawa H;Miura Y;Nakayama H;Nonaka T;Hasegawa M;Egawa N;Inoue H;Nishikawa K;Yamano K;Simpson RJ;Taoka M;Yamauchi Y;Isobe T;Takahashi N
The 43-kDa trans-activating response region DNA-binding protein 43 (TDP-43) is a product of a causative gene for amyotrophic lateral sclerosis (ALS). Despite of accumulating evidence that mitochondrial dysfunction underlies the pathogenesis of TDP-43–related ALS, the roles of wild-type TDP-43 in mitochondria are unknown. Here, we show that the small TDP-43 population present in mitochondria binds directly to a subset of mitochondrial tRNAs and precursor RNA encoded in L-strand mtDNA. Upregulated expression of TDP-43 stabilised the processing intermediates of mitochondrial polycistronic transcripts and their products including the components of electron transport and 16S mt-rRNA, similar to the phenotype observed in cells deficient for mitochondrial RNase P. Conversely, TDP-43 deficiency reduced the population of processing intermediates and impaired mitochondrial function. We propose that TDP-43 has a novel role in maintaining mitochondrial homeostasis by regulating the processing of mitochondrial transcripts.
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影响因子:
38.1
作者:
Chen-Plotkin, Alice S.;Lee, Virginia M. -Y.;Trojanowski, John Q.
通讯作者:
Trojanowski, John Q.
影响因子:
14.9
作者:
Izumikawa K;Yoshikawa H;Ishikawa H;Nobe Y;Yamauchi Y;Philipsen S;Simpson RJ;Isobe T;Takahashi N
通讯作者:
Takahashi N
影响因子:
3.5
作者:
Magrane, Jordi;Cortez, Czrina;Manfredi, Giovanni
通讯作者:
Manfredi, Giovanni
DOI:
10.1073/pnas.1008227107
发表时间:
2010-07-27
影响因子:
11.1
作者:
Ling, Shuo-Chien;Albuquerque, Claudio P.;Cleveland, Don W.
通讯作者:
Cleveland, Don W.
影响因子:
4
作者:
Ayala, Youhna M.;Zago, Paola;Baralle, Francisco E.
通讯作者:
Baralle, Francisco E.