Cellular handling of protein aggregates by disaggregation machines

A Mogk, B Bukau, HH Kampinga - Molecular cell, 2018 - cell.com
Both acute proteotoxic stresses that unfold proteins and expression of disease-causing
mutant proteins that expose aggregation-prone regions can promote protein aggregation …

Protein quality control by molecular chaperones in neurodegeneration

A Ciechanover, YT Kwon - Frontiers in neuroscience, 2017 - frontiersin.org
Protein homeostasis (proteostasis) requires the timely degradation of misfolded proteins and
their aggregates by protein quality control (PQC), of which molecular chaperones are an …

Malaria parasite translocon structure and mechanism of effector export

CM Ho, JR Beck, M Lai, Y Cui, DE Goldberg, PF Egea… - Nature, 2018 - nature.com
The putative Plasmodium translocon of exported proteins (PTEX) is essential for transport of
malarial effector proteins across a parasite-encasing vacuolar membrane into host …

Potentiated Hsp104 variants antagonize diverse proteotoxic misfolding events

ME Jackrel, ME DeSantis, BA Martinez, LM Castellano… - Cell, 2014 - cell.com
There are no therapies that reverse the proteotoxic misfolding events that underpin fatal
neurodegenerative diseases, including amyotrophic lateral sclerosis (ALS) and Parkinson's …

Cooperation of Hsp70 and Hsp100 chaperone machines in protein disaggregation

A Mogk, E Kummer, B Bukau - Frontiers in molecular biosciences, 2015 - frontiersin.org
Unicellular and sessile organisms are particularly exposed to environmental stress such as
heat shock causing accumulation and aggregation of misfolded protein species. To …

Spatially organized aggregation of misfolded proteins as cellular stress defense strategy

SBM Miller, A Mogk, B Bukau - Journal of molecular biology, 2015 - Elsevier
An evolutionary conserved response of cells to proteotoxic stress is the organized
sequestration of misfolded proteins into subcellular deposition sites. In Saccharomyces …

Hsp70 displaces small heat shock proteins from aggregates to initiate protein refolding

S Żwirowski, A Kłosowska, I Obuchowski… - The EMBO …, 2017 - embopress.org
Small heat shock proteins (sH sps) are an evolutionary conserved class of ATP‐
independent chaperones that protect cells against proteotoxic stress. sH sps form …

Structural pathway of regulated substrate transfer and threading through an Hsp100 disaggregase

C Deville, M Carroni, KB Franke, M Topf, B Bukau… - Science …, 2017 - science.org
Refolding aggregated proteins is essential in combating cellular proteotoxic stress. Together
with Hsp70, Hsp100 chaperones, including Escherichia coli ClpB, form a powerful …

Metazoan Hsp70-based protein disaggregases: emergence and mechanisms

NB Nillegoda, B Bukau - Frontiers in molecular biosciences, 2015 - frontiersin.org
Proteotoxic stresses and aging cause breakdown of cellular protein homeostasis, allowing
misfolded proteins to form aggregates, which dedicated molecular machines have evolved …

Protein aggregation and disaggregation in cells and development

JS Fassler, S Skuodas, DL Weeks… - Journal of molecular …, 2021 - Elsevier
Protein aggregation is a feature of numerous neurodegenerative diseases. However,
regulated, often reversible, formation of protein aggregates, also known as condensates …