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Suppression of C9orf72 RNA repeat-induced neurotoxicity by the ALS-associated RNA-binding protein Zfp106.

eLife | 2017

Expanded GGGGCC repeats in the first intron of the C9orf72 gene represent the most common cause of familial amyotrophic lateral sclerosis (ALS), but the mechanisms underlying repeat-induced disease remain incompletely resolved. One proposed gain-of-function mechanism is that repeat-containing RNA forms aggregates that sequester RNA binding proteins, leading to altered RNA metabolism in motor neurons. Here, we identify the zinc finger protein Zfp106 as a specific GGGGCC RNA repeat-binding protein, and using affinity purification-mass spectrometry, we show that Zfp106 interacts with multiple other RNA binding proteins, including the ALS-associated factors TDP-43 and FUS. We also show that Zfp106 knockout mice develop severe motor neuron degeneration, which can be suppressed by transgenic restoration of Zfp106 specifically in motor neurons. Finally, we show that Zfp106 potently suppresses neurotoxicity in a Drosophila model of C9orf72 ALS. Thus, these studies identify Zfp106 as an RNA binding protein with important implications for ALS.

Pubmed ID: 28072389 RIS Download

Research resources used in this publication

Associated grants

  • Agency: NHLBI NIH HHS, United States
    Id: P01 HL089707
  • Agency: NIA NIH HHS, United States
    Id: P50 AG023501
  • Agency: BLRD VA, United States
    Id: I01 BX001108
  • Agency: NIA NIH HHS, United States
    Id: P01 AG019724
  • Agency: NHLBI NIH HHS, United States
    Id: R01 HL064658
  • Agency: NINDS NIH HHS, United States
    Id: R01 NS098516
  • Agency: RRD VA, United States
    Id: I01 RX002133

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View all literature mentions

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RRID:AB_2338959

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View all literature mentions

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RRID:SCR_002254

Database of manually annotated protein complexes from mammalian organisms. Annotation includes protein complex function, localization, subunit composition, literature references and more. All information is obtained from individual experiments published in scientific articles, but data from high-throughput experiments is excluded.
The majority of protein complexes in CORUM originates from man (65%), followed by mouse (14%) and rat (14%).

View all literature mentions

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RRID:SCR_003032

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View all literature mentions

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Anti-Beta-Gal (Beta-Galactosidase, LacZ) Antibody (antibody)

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RRID:AB_999690

This unknown targets ZFP106

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RRID:IMSR_KOMP:CSD26348-1a-Wtsi

gene symbol note: zinc finger protein 106 mutant strain targeted mutation 1a, Wellcome Trust Sanger Institute This is a legacy resource.

View all literature mentions