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Phenylalanine-tRNA aminoacylation is compromised by ALS/FTD-associated C9orf72 C4G2 repeat RNA [Elektronski vir]Malnar, Mirjana ...The expanded hexanucleotide GGGGCC repeat mutation in the C9orf72 gene is the main genetic cause of amyotrophic lateral sclerosis and frontotemporal dementia. Under one disease mechanism, sense and ... antisense transcripts of the repeat are predicted to bind various RNA-binding proteins, compromise their function and cause cytotoxicity. Here we identify phenylalanine-tRNA synthetase (FARS) subunit alpha (FARSA) as the main interactor of the CCCCGG antisense repeat RNA in cytosol. The aminoacylation of tRNAPhe by FARS is inhibited by antisense RNA, leading to decreased levels of charged tRNAPhe. Remarkably, this is associated with global reduction of phenylalanine incorporation in the proteome and decrease in expression of phenylalanine-rich proteins in cellular models and patient tissues. In conclusion, this study reveals functional inhibition of FARSA in the presence of antisense RNA repeats. Compromised aminoacylation of tRNA could lead to impairments in protein synthesis and further contribute to C9orf72 mutation-associated pathology.Vir: Nature communications [Elektronski vir]. - ISSN 2041-1723 (Vol. 14, article no. 5764, 2023, str. 1-15)Vrsta gradiva - e-članek ; neleposlovje za odrasleLeto - 2023Jezik - angleškiCOBISS.SI-ID - 166968323
Avtor
Malnar, Mirjana |
Čerček, Urša, biokemičarka |
Yin, Xiaoke |
Tin Ho, Manh |
Repič-Lampret, Barbka |
Neumann, Manuela |
Hermann, Andreas, (biomedicina) |
Rouleau, Guy |
Suter, Beat, (biomedicina) |
Mayr, Manuel |
Rogelj, Boris
Teme
genetic mutation |
aminoacylation |
amyotrophic lateral sclerosis |
frontotemporal dementia |
genetska mutacija |
aminoacilacija |
amiotrofična lateralna skleroza |
frontotemporalna demenca
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Malnar, Mirjana | 39147 |
Čerček, Urša, biokemičarka | 54687 |
Yin, Xiaoke | ![]() |
Tin Ho, Manh | ![]() |
Repič-Lampret, Barbka | 14020 |
Neumann, Manuela | ![]() |
Hermann, Andreas, (biomedicina) | ![]() |
Rouleau, Guy | ![]() |
Suter, Beat, (biomedicina) | ![]() |
Mayr, Manuel | ![]() |
Rogelj, Boris | 15813 |
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