Sie befinden Sich nicht im Netzwerk der Universität Paderborn. Der Zugriff auf elektronische Ressourcen ist gegebenenfalls nur via VPN oder Shibboleth (DFN-AAI) möglich. mehr Informationen...
Zur Ergebnisliste
Ergebnis 4 von 17
Open Access
    Datensatz exportieren als...
  • BibTeX
Mutations in prion-like domains in hnRNPA2B1 and hnRNPA1 cause multisystem proteinopathy and ALS
Nature (London), 2013-03, Vol.495 (7442), p.467-473
2013
Volltextzugriff (PDF)

Details

Autor(en) / Beteiligte
Titel
Mutations in prion-like domains in hnRNPA2B1 and hnRNPA1 cause multisystem proteinopathy and ALS
Ist Teil von
  • Nature (London), 2013-03, Vol.495 (7442), p.467-473
Ort / Verlag
England: Nature Publishing Group
Erscheinungsjahr
2013
Quelle
MEDLINE
Beschreibungen/Notizen
  • Algorithms designed to identify canonical yeast prions predict that around 250 human proteins, including several RNA-binding proteins associated with neurodegenerative disease, harbour a distinctive prion-like domain (PrLD) enriched in uncharged polar amino acids and glycine. PrLDs in RNA-binding proteins are essential for the assembly of ribonucleoprotein granules. However, the interplay between human PrLD function and disease is not understood. Here we define pathogenic mutations in PrLDs of heterogeneous nuclear ribonucleoproteins (hnRNPs) A2B1 and A1 in families with inherited degeneration affecting muscle, brain, motor neuron and bone, and in one case of familial amyotrophic lateral sclerosis. Wild-type hnRNPA2 (the most abundant isoform of hnRNPA2B1) and hnRNPA1 show an intrinsic tendency to assemble into self-seeding fibrils, which is exacerbated by the disease mutations. Indeed, the pathogenic mutations strengthen a 'steric zipper' motif in the PrLD, which accelerates the formation of self-seeding fibrils that cross-seed polymerization of wild-type hnRNP. Notably, the disease mutations promote excess incorporation of hnRNPA2 and hnRNPA1 into stress granules and drive the formation of cytoplasmic inclusions in animal models that recapitulate the human pathology. Thus, dysregulated polymerization caused by a potent mutant steric zipper motif in a PrLD can initiate degenerative disease. Related proteins with PrLDs should therefore be considered candidates for initiating and perhaps propagating proteinopathies of muscle, brain, motor neuron and bone.
Sprache
Englisch
Identifikatoren
ISSN: 0028-0836
eISSN: 1476-4687
DOI: 10.1038/nature11922
Titel-ID: cdi_proquest_miscellaneous_1321793017
Format
–
Schlagworte
Amino Acid Sequence, Amino acids, Amyotrophic Lateral Sclerosis - genetics, Amyotrophic Lateral Sclerosis - metabolism, Amyotrophic Lateral Sclerosis - pathology, Animal models, Animals, Drosophila melanogaster - cytology, Drosophila melanogaster - genetics, Drosophila melanogaster - metabolism, Female, Frontotemporal Dementia - genetics, Frontotemporal Dementia - metabolism, Frontotemporal Dementia - pathology, Genetic testing, Genetics, Genomes, Genomics, HeLa Cells, Heterogeneous-Nuclear Ribonucleoprotein Group A-B - chemistry, Heterogeneous-Nuclear Ribonucleoprotein Group A-B - genetics, Heterogeneous-Nuclear Ribonucleoprotein Group A-B - metabolism, Humans, Inclusion Bodies - genetics, Inclusion Bodies - metabolism, Inclusion Bodies - pathology, Insects, Male, Mice, Molecular Sequence Data, Muscular Dystrophies, Limb-Girdle - genetics, Muscular Dystrophies, Limb-Girdle - metabolism, Muscular Dystrophies, Limb-Girdle - pathology, Mutant Proteins - chemistry, Mutant Proteins - genetics, Mutant Proteins - metabolism, Mutation, Mutation - genetics, Myositis, Inclusion Body - genetics, Myositis, Inclusion Body - metabolism, Myositis, Inclusion Body - pathology, Osteitis Deformans - genetics, Osteitis Deformans - metabolism, Osteitis Deformans - pathology, Pathology, Patients, Peptide Termination Factors - chemistry, Peptide Termination Factors - genetics, Peptide Termination Factors - metabolism, Prions - chemistry, Prions - genetics, Prions - metabolism, Protein Structure, Tertiary - genetics, Proteins, RNA - metabolism, Saccharomyces cerevisiae Proteins - chemistry, Saccharomyces cerevisiae Proteins - genetics, Saccharomyces cerevisiae Proteins - metabolism, Software, Yeasts

Weiterführende Literatur

Empfehlungen zum selben Thema automatisch vorgeschlagen von bX