Structural and functional complexity of HSP90 in cellular homeostasis and disease

G Chiosis, CS Digwal, JB Trepel… - Nature Reviews Molecular …, 2023 - nature.com
Abstract Heat shock protein 90 (HSP90) is a chaperone with vital roles in regulating
proteostasis, long recognized for its function in protein folding and maturation. A view is …

The mitochondrial HSP90 paralog TRAP1: structural dynamics, interactome, role in metabolic regulation, and inhibitors

A Joshi, T Ito, D Picard, L Neckers - Biomolecules, 2022 - mdpi.com
The HSP90 paralog TRAP1 was discovered more than 20 years ago; yet, a detailed
understanding of the function of this mitochondrial molecular chaperone remains elusive …

The mitochondrial HSP90 paralog TRAP1 forms an OXPHOS-regulated tetramer and is involved in mitochondrial metabolic homeostasis

A Joshi, L Dai, Y Liu, J Lee, NM Ghahhari, G Segala… - BMC biology, 2020 - Springer
Background The molecular chaperone TRAP1, the mitochondrial isoform of cytosolic
HSP90, remains poorly understood with respect to its pivotal role in the regulation of …

The hexameric structures of human heat shock protein 90

CC Lee, TW Lin, TP Ko, AHJ Wang - PloS one, 2011 - journals.plos.org
Background The human 90-kDa heat shock protein (HSP90) functions as a dimeric
molecular chaperone. HSP90 identified on the cell surface has been found to play a crucial …

Targeting the Hsp90 C-terminal domain to induce allosteric inhibition and selective client downregulation

KM Goode, DP Petrov, RE Vickman, SA Crist… - … et Biophysica Acta (BBA …, 2017 - Elsevier
Abstract Background Inhibition of Hsp90 is desirable due to potential downregulation of
oncogenic clients. Early generation inhibitors bind to the N-terminal domain (NTD) but C …

Resolving hot spots in the C-terminal dimerization domain that determine the stability of the molecular chaperone Hsp90

E Ciglia, J Vergin, S Reimann, SHJ Smits, L Schmitt… - PLOS …, 2014 - journals.plos.org
Human heat shock protein of 90 kDa (hHsp90) is a homodimer that has an essential role in
facilitating malignant transformation at the molecular level. Inhibiting hHsp90 function is a …

[HTML][HTML] Middle domain of human Hsp90 isoforms differentially binds Aha1 in human cells and alters Hsp90 activity in yeast

K Synoradzki, P Bieganowski - … et Biophysica Acta (BBA)-Molecular Cell …, 2015 - Elsevier
Hsp90 is an essential chaperone for more than 200 client proteins in eukaryotic cells. The
human genome encodes two highly similar cytosolic Hsp90 proteins called Hsp90α and …

Hsp90 directly interacts, in vitro, with amyloid structures and modulates their assembly and disassembly

C Schirmer, E Lepvrier, L Duchesne, O Decaux… - … et Biophysica Acta (BBA …, 2016 - Elsevier
Background The 90 kDa heat shock protein (Hsp90) participates in regulating the
homeostasis of cellular proteins and was considered one of the key chaperones involved in …

Structural bases for the Charcot-Marie-Tooth disease induced by single amino acid substitutions of myelin protein zero

M Sakakura, M Tanabe, M Mori, H Takahashi, K Mio - Structure, 2023 - cell.com
Myelin protein zero (MPZ or P0) is a transmembrane protein which functions to glue
membranes in peripheral myelin. Inter-membrane adhesion is mediated by homophilic …

Hsp90 oligomers interacting with the Aha1 cochaperone: an outlook for the Hsp90 chaperone machineries

E Lepvrier, L Moullintraffort, M Nigen, R Goude… - Analytical …, 2015 - ACS Publications
The 90-kDa heat shock protein (Hsp90) is a highly flexible dimer able to self-associate in the
presence of divalent cations or under heat shock. This study investigated the relationship …