Results 11 to 20 of about 14,329 (183)

Proteasome degrades soluble expanded polyglutamine completely and efficiently

open access: yesNeurobiology of Disease, 2004
To date, nine progressive neurodegenerative diseases are caused by expansion of the CAG repeat coding for polyglutamine, including Huntington's disease and several forms of spinocerebellar ataxia.
Christine Van Broeckhoven
exaly   +3 more sources

Inhibition of Polyglutamine Misfolding with D-Enantiomeric Peptides Identified by Mirror Image Phage Display Selection

open access: yesBiomolecules, 2022
Nine heritable diseases are known that are caused by unphysiologically elongated polyglutamine tracts in human proteins leading to misfolding, aggregation and neurodegeneration.
Pauline Elisabeth Kolkwitz   +2 more
doaj   +1 more source

Oxidative Stress and Neurodegeneration: Interconnected Processes in PolyQ Diseases

open access: yesAntioxidants, 2021
Neurodegenerative polyglutamine (polyQ) disorders are caused by trinucleotide repeat expansions within the coding region of disease-causing genes. PolyQ-expanded proteins undergo conformational changes leading to the formation of protein inclusions which
Ioannis Gkekas   +5 more
doaj   +1 more source

Ubiquitin-interacting motifs of ataxin-3 regulate its polyglutamine toxicity through Hsc70-4-dependent aggregation

open access: yeseLife, 2020
Spinocerebellar ataxia type 3 (SCA3) belongs to the family of polyglutamine neurodegenerations. Each disorder stems from the abnormal lengthening of a glutamine repeat in a different protein. Although caused by a similar mutation, polyglutamine disorders
Sean L Johnson   +4 more
doaj   +1 more source

J Proteins Counteract Amyloid Propagation and Toxicity in Yeast

open access: yesBiology, 2022
The accumulation of misfolded proteins as amyloids is associated with pathology in dozens of debilitating human disorders, including diabetes, Alzheimer’s, Parkinson’s, and Huntington’s diseases.
Daniel C. Masison   +2 more
doaj   +1 more source

Molecular Mechanisms in Pentanucleotide Repeat Diseases

open access: yesCells, 2022
The number of neurodegenerative diseases resulting from repeat expansion has increased extraordinarily in recent years. In several of these pathologies, the repeat can be transcribed in RNA from both DNA strands producing, at least, one toxic RNA repeat ...
Joana R. Loureiro   +3 more
doaj   +1 more source

Novel polyglutamine model uncouples proteotoxicity from aging. [PDF]

open access: yesPLoS ONE, 2014
Polyglutamine expansions in certain proteins are the genetic determinants for nine distinct progressive neurodegenerative disorders and resultant age-related dementia.
Nakeirah T M Christie   +4 more
doaj   +1 more source

Huntingtin exon 1 deletion does not alter the subcellular distribution of huntingtin and gene transcription in mice

open access: yesFrontiers in Cellular Neuroscience, 2022
Huntington disease (HD) is caused by the expansion of CAG triplet repeats in exon 1 of the huntingtin (HTT) gene, which also encodes the first 17 amino acids (N-17) that can modulate the toxicity of the expanded polyQ repeat. N-17 are conserved in a wide
Xianxian Zhao   +5 more
doaj   +1 more source

New Perspectives of Gene Therapy on Polyglutamine Spinocerebellar Ataxias: From Molecular Targets to Novel Nanovectors

open access: yesPharmaceutics, 2021
Seven of the most frequent spinocerebellar ataxias (SCAs) are caused by a pathological expansion of a cytosine, adenine and guanine (CAG) trinucleotide repeat located in exonic regions of unrelated genes, which in turn leads to the synthesis of ...
Fabiola V. Borbolla-Jiménez   +5 more
doaj   +1 more source

Coaggregation of polyglutamine (polyQ) proteins is mediated by polyQ-tract interactions and impairs cellular proteostasis

open access: yesActa Biochimica et Biophysica Sinica, 2023
Nine polyglutamine (polyQ) proteins have already been identified that are considered to be associated with the pathologies of neurodegenerative disorders called polyQ diseases, but whether these polyQ proteins mutually interact and synergize in ...
Hong Jun-Ye   +6 more
doaj   +1 more source

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