ArticleGenetics2017
Insight into the RNA Exosome Complex Through Modeling Pontocerebellar Hypoplasia Type 1b Disease Mutations in Yeast.
Article in Genetics, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.
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Who cites it
31 citing papers in PubMed, 44 citations in OpenAlex.
- Review
- Cellular assembly and functional resilience of the mammalian RNA exosome.The EMBO journal · 2026Article
- Pontocerebellar hypoplasia linked mutations of the deadenylase Target of EGR1 (TOE1) impair thermal stability, ribonuclease activity, and oligomerization.The Journal of biological chemistry · 2026Article
- EXOSC3 G191 Variants Trigger System-Wide Recalibration of RNA Processing Machinery.bioRxiv : the preprint server for biology · 2026Article
- The RNA exosome maintains cellular RNA homeostasis by controlling transcript abundance in the brain.Cell reports · 2026Article
- Necrotizing Enterocolitis Due to Mesenteric Artery Thrombosis in a Patient with Craniofrontonasal Dysplasia: Casual or Causal Association?Journal of clinical medicine · 2025Article
- Biochemical characterizations of Pontocerebellar Hypoplasia linked mutations of Target of Egr1 (TOE1) reveal impacts on thermal stability, ribonuclease activity, and oligomerization.bioRxiv : the preprint server for biology · 2025Article
- Comparative analyses of disease-linked missense mutations in the RNA exosome modeled in budding yeast reveal distinct functional consequences in translation.RNA (New York, N.Y.) · 2025Article
- EXOSC3 S1-domain variants implicated in PCH1b alter RNA exosome cap subunit abundance and thermal stability disrupting rRNA processing and targeting of AU-rich mRNA.bioRxiv : the preprint server for biology · 2025Article
- Humanized Saccharomyces cerevisiae provides a facile and effective tool to identify damaging human variants that cause exosomopathies.G3 (Bethesda, Md.) · 2025Article
- Built differently or defective: can RNA exosomopathies cause ribosome heterogeneity?Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025Review
- Proteomic landscape of porcine induced neural stem cell reprogramming and differentiation.PeerJ · 2025Article
- A biallelic variant of the RNA exosome gene, EXOSC4, associated with neurodevelopmental defects impairs RNA exosome function and translation.The Journal of biological chemistry · 2024Article
- PAPγ associates with PAXT nuclear exosome to control the abundance of PROMPT ncRNAs.Nature communications · 2023Article
- In vivo characterization of the critical interaction between the RNA exosome and the essential RNA helicase Mtr4 in Saccharomyces cerevisiae.G3 (Bethesda, Md.) · 2023Article
- No, it is not mutually exclusive! A case report of a girl with two genetic diagnoses: Craniofrontonasal dysplasia and pontocerebellar hypoplasia type 1B.Clinical case reports · 2023Article
- Clinical, radiological, and genetic variation in pontocerebellar hypoplasia disorder and our clinical experience.Italian journal of pediatrics · 2022Article
- A budding yeast model for human disease mutations in theRNA (New York, N.Y.) · 2021Article
- Post-transcriptional control of cellular differentiation by the RNA exosome complex.Nucleic acids research · 2020Review
- Biallelic variants in the RNA exosome gene EXOSC5 are associated with developmental delays, short stature, cerebellar hypoplasia and motor weakness.Human molecular genetics · 2020Article
Corrections and comments
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Authors and funding
12 authors at 2 institutions in 1 country.
Funding
Abstract
Pontocerebellar hypoplasia type 1b (PCH1b) is an autosomal recessive disorder that causes cerebellar hypoplasia and spinal motor neuron degeneration, leading to mortality in early childhood. PCH1b is caused by mutations in the RNA exosome subunit gene, EXOSC3 The RNA exosome is an evolutionarily conserved complex, consisting of nine different core subunits, and one or two 3'-5' exoribonuclease subunits, that mediates several RNA degradation and processing steps. The goal of this study is to assess the functional consequences of the amino acid substitutions that have been identified in EXOSC3 in PCH1b patients. To analyze these EXOSC3 substitutions, we generated the corresponding amino acid substitutions in the Saccharomyces cerevisiae ortholog of EXOSC3, Rrp40 We find that the rrp40 variants corresponding to EXOSC3-G31A and -D132A do not affect yeast function when expressed as the sole copy of the essential Rrp40 protein. In contrast, the rrp40-W195R variant, corresponding to EXOSC3-W238R in PCH1b patients, impacts cell growth and RNA exosome function when expressed as the sole copy of Rrp40 The rrp40-W195R protein is unstable, and does not associate efficiently with the RNA exosome in cells that also express wild-type Rrp40 Consistent with these findings in yeast, the levels of mouse EXOSC3 variants are reduced compared to wild-type EXOSC3 in a neuronal cell line. These data suggest that cells possess a mechanism for optimal assembly of functional RNA exosome complex that can discriminate between wild-type and variant exosome subunits. Budding yeast can therefore serve as a useful tool to understand the molecular defects in the RNA exosome caused by PCH1b-associated amino acid substitutions in EXOSC3, and potentially extending to disease-associated substitutions in other exosome subunits.
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