Results 31 to 40 of about 20,303 (218)

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

Polyglutamine Repeats in Viruses [PDF]

open access: yesMolecular Neurobiology, 2018
This review explores the presence and functions of polyglutamine (polyQ) in viral proteins. In mammals, mutations in polyQ segments (and CAG repeats at the nucleotide level) have been linked to neural disorders and ataxias. PolyQ regions in normal human proteins have documented functional roles, in transcription factors and, more recently, in ...
openaire   +2 more sources

Deranged calcium signaling and neurodegeneration in spinocerebellar ataxia type 3 [PDF]

open access: yes, 2008
Spinocerebellar ataxia type 3 (SCA3), also known as Machado-Joseph disease (MJD), is an autosomal-dominant neurodegenerative disorder caused by a polyglutamine expansion in ataxin-3 (SCA3, MJD1) protein.
X. Chen   +15 more
core   +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

Stimulating proteasomal degradation in human proteinopathies. [PDF]

open access: yesFEBS J
The proteasome mediates the degradation of a wide range of proteins. Boosting proteasomal degradation may be beneficial in several disease contexts and can be achieved either by modulating proteasome activity or by improving substrate delivery. Proteasome activity can be enhanced by increasing proteasome abundance, inducing constitutive gate opening ...
Gierisch ME, Barchi E, Dantuma NP.
europepmc   +2 more sources

Ataxin-1 fusion partners alter polyQ lethality and aggregation [PDF]

open access: yes, 2007
Intranuclear inclusion bodies (IBs) are the histopathologic markers of multiple protein folding diseases. IB formation has been extensively studied using fluorescent fusion products of pathogenic polyglutamine (polyQ) expressing proteins.
Rich, T.   +5 more
core   +2 more sources

Huntingtin’s spherical solenoid structure enables polyglutamine tract-dependent modulation of its structure and function

open access: yeseLife, 2016
The polyglutamine expansion in huntingtin protein causes Huntington’s disease. Here, we investigated structural and biochemical properties of huntingtin and the effect of the polyglutamine expansion using various biophysical experiments including ...
Ravi Vijayvargia   +13 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

Metallothioneins and copper metabolism are candidate therapeutic targets in Huntington’s disease [PDF]

open access: yes, 2010
HD (Huntington's disease) is caused by a polyQ (polyglutamine) expansion in the huntingtin protein, which leads to protein misfolding and aggregation of this protein. Abnormal copper accumulation in the HD brain was first reported more than 15 years ago.
Giorgini, Flaviano   +18 more
core   +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

Home - About - Disclaimer - Privacy