Results 31 to 40 of about 16,136 (210)

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

The 11S Proteasomal Activator REGγ Impacts Polyglutamine-Expanded Androgen Receptor Aggregation and Motor Neuron Viability through Distinct Mechanisms

open access: yesFrontiers in Molecular Neuroscience, 2017
Spinal and bulbar muscular atrophy (SBMA) is caused by expression of a polyglutamine (polyQ)-expanded androgen receptor (AR). The inefficient nuclear proteasomal degradation of the mutant AR results in the formation of nuclear inclusions containing amino-
Jill M. Yersak   +6 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

Autophagy Modulation as a Treatment of Amyloid Diseases

open access: yesMolecules, 2019
Amyloids are fibrous proteins aggregated into toxic forms that are implicated in several chronic disorders. More than 30 diseases show deposition of fibrous amyloid proteins associated with cell loss and degeneration in the affected tissues.
Zoe Mputhia   +5 more
doaj   +1 more source

Skeletal Muscle Pathogenesis in Polyglutamine Diseases

open access: yesCells, 2022
Polyglutamine diseases are characterized by selective dysfunction and degeneration of specific types of neurons in the central nervous system. In addition, nonneuronal cells can also be affected as a consequence of primary degeneration or due to neuronal
Caterina Marchioretti   +5 more
doaj   +1 more source

A Novel Calpain Inhibitor Compound Has Protective Effects on a Zebrafish Model of Spinocerebellar Ataxia Type 3

open access: yesCells, 2021
Spinocerebellar ataxia type 3 (SCA3) is a hereditary ataxia caused by inheritance of a mutated form of the human ATXN3 gene containing an expanded CAG repeat region, encoding a human ataxin-3 protein with a long polyglutamine (polyQ) repeat region ...
Katherine J. Robinson   +4 more
doaj   +1 more source

Polyglutamine Disease: Acetyltransferases Awry [PDF]

open access: yesCurrent Biology, 2002
Recent evidence indicates that inhibition of histone acetyltransferases may be a primary cause of cellular pathogenesis in polyglutamine diseases such as Huntington disease; the results raise the possibility that pharmacologic manipulation of protein acetylation levels could be of therapeutic benefit.
openaire   +2 more sources

Polyglutamine (polyQ) disorders [PDF]

open access: yesNucleus, 2012
Polyglutamine (PolyQ)-related diseases are dominant late-onset genetic disorders that are manifested by progressive neurodegeneration, leading to behavioral and physical impairments. An increased body of evidence suggests that chromatin structure and epigenetic regulation are involved in disease pathology.
Cohen-Carmon D, Meshorer E
openaire   +2 more sources

The emerging role of the first 17 amino acids of huntingtin in Huntington’s disease

open access: yesBiomolecular Concepts, 2015
Huntington’s disease (HD) is caused by a polyglutamine (polyQ) domain that is expanded beyond a critical threshold near the N-terminus of the huntingtin (htt) protein, directly leading to htt aggregation. While full-length htt is a large (on the order of
Arndt James R.   +2 more
doaj   +1 more source

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