Results 71 to 80 of about 92,071 (194)

Stabilization of partially folded states in protein folding/misfolding transitions by hydrostatic pressure

open access: yesBrazilian Journal of Medical and Biological Research, 2005
In the last few years, hydrostatic pressure has been extensively used in the study of both protein folding and misfolding/aggregation. Compared to other chemical or physical denaturing agents, a unique feature of pressure is its ability to induce subtle ...
S.T. Ferreira   +2 more
doaj   +1 more source

The potential role of dietary polyphenols in Parkinson’s disease [PDF]

open access: yes, 2011
Cumulative evidence now suggests that the abnormal aggregation of the neuronal protein alpha-synuclein is critically involved in the pathogenesis of synucleinopathies, of which Parkinson’s disease (PD) is the most prevalent. Development of neuropathology
Caruana, Mario, Vassallo, Neville
core  

Polyglutamine neurodegeneration: protein misfolding revisited [PDF]

open access: yesTrends in Neurosciences, 2008
Polyglutamine diseases are a major cause of neurodegeneration worldwide. Recent studies highlight the importance of protein quality control mechanisms in regulating polyglutamine-induced toxicity. Here we discuss a model of disease pathogenesis that integrates current understanding of the role of protein folding in polyglutamine disease with emerging ...
Aislinn J, Williams, Henry L, Paulson
openaire   +2 more sources

Studying Spatial Protein Quality Control, Proteopathies, and Aging Using Different Model Misfolding Proteins in S. cerevisiae

open access: yesFrontiers in Molecular Neuroscience, 2018
Protein quality control (PQC) is critical to maintain a functioning proteome. Misfolded or toxic proteins are either refolded or degraded by a system of temporal quality control and can also be sequestered into aggregates or inclusions by a system of ...
Kara L. Schneider   +2 more
doaj   +1 more source

Proteostasis collapse is a driver of cell aging and death. [PDF]

open access: yes, 2019
What molecular processes drive cell aging and death? Here, we model how proteostasis-i.e., the folding, chaperoning, and maintenance of protein function-collapses with age from slowed translation and cumulative oxidative damage.
de Graff, Adam MR   +2 more
core  

Direct single-molecule observation of calcium-dependent misfolding in human neuronal calcium sensor-1 [PDF]

open access: yes, 2014
Neurodegenerative disorders are strongly linked to protein misfolding, and crucial to their explication is a detailed understanding of the underlying structural rearrangements and pathways that govern the formation of misfolded states. Here we use single-
Cecconi, Ciro   +5 more
core   +1 more source

Protein Misfolding and Retinal Degeneration [PDF]

open access: yesCold Spring Harbor Perspectives in Biology, 2011
The retina is a highly complex and specialized organ that performs preliminary analysis of visual information. Composed of highly metabolically active tissue, the retina requires a precise and well-balanced means of maintaining its functional activity during extended periods of time.
Radouil, Tzekov   +2 more
openaire   +2 more sources

From Seeds to Fibrils and Back: Fragmentation as an Overlooked Step in the Propagation of Prions and Prion-Like Proteins

open access: yesBiomolecules, 2020
Many devastating neurodegenerative diseases are driven by the misfolding of normal proteins into a pathogenic abnormal conformation. Examples of such protein misfolding diseases include Alzheimer’s disease, Parkinson’s disease, Huntington’s disease ...
Cristóbal Marrero-Winkens   +2 more
doaj   +1 more source

Inhibition of IRE1α-mediated XBP1 mRNA cleavage by XBP1 reveals a novel regulatory process during the unfolded protein response [PDF]

open access: yes, 2017
Background: The mammalian endoplasmic reticulum (ER) continuously adapts to the cellular secretory load by the activation of an unfolded protein response (UPR).
Bulleid, Neil J.   +4 more
core   +2 more sources

Cotranslational folding of proteins on the ribosome.

open access: yes, 2020
Many proteins in the cell fold cotranslationally within the restricted space of the polypeptide exit tunnel or at the surface of the ribosome. A growing body of evidence suggests that the ribosome can alter the folding trajectory in many different ways ...
Liutkute, M., Rodnina, M., Samatova, E.
core   +1 more source

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