Search results for "Sp1 protein"

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A protein quality control pathway regulated by linear ubiquitination.

2019

Neurodegenerative diseases are characterized by the accumulation of misfolded proteins in the brain. Insights into protein quality control mechanisms to prevent neuronal dysfunction and cell death are crucial in developing causal therapies. Here, we report that various disease-associated protein aggregates are modified by the linear ubiquitin chain assembly complex (LUBAC). HOIP, the catalytic component of LUBAC, is recruited to misfolded Huntingtin in a p97/VCP-dependent manner, resulting in the assembly of linear polyubiquitin. As a consequence, the interactive surface of misfolded Huntingtin species is shielded from unwanted interactions, for example with the low complexity sequence doma…

MaleHuntingtinSp1 protein humanProtein aggregationHTT protein humanDeubiquitinating enzymegenetics [Huntington Disease]Micegenetics [Sp1 Transcription Factor]0302 clinical medicineUbiquitinpathology [Brain]Valosin Containing Proteincytology [Fibroblasts]pathology [Neurons]PolyubiquitinCells CulturedMice Knockout0303 health sciencesHuntingtin ProteinGeneral NeuroscienceNF-kappa Bgenetics [Huntingtin Protein]Middle AgedCell biologymetabolism [Polyubiquitin]pathology [Huntington Disease]metabolism [Neurons]metabolism [NF-kappa B]Protein foldingFemalemetabolism [Fibroblasts]Protein BindingSignal TransductionAdultmetabolism [Valosin Containing Protein]Sp1 Transcription Factorcytology [Embryo Mammalian]genetics [Valosin Containing Protein]BiologyGeneral Biochemistry Genetics and Molecular Biologymetabolism [Sp1 Transcription Factor]03 medical and health sciencesddc:570Gene silencingAnimalsHumansmetabolism [Huntington Disease]Protein Interaction Domains and MotifsMolecular Biologymetabolism [Embryo Mammalian]030304 developmental biologyAgedSp1 transcription factorGeneral Immunology and MicrobiologyUbiquitinationProteotoxicitymetabolism [Brain]Case-Control Studiesmetabolism [Huntingtin Protein]biology.proteinProtein Processing Post-Translational030217 neurology & neurosurgerygenetics [NF-kappa B]
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