Elucidating the novel mechanisms of molecular chaperones by single-molecule technologies

AC Mistry, D Chowdhury, S Chakraborty… - Trends in Biochemical …, 2024 - cell.com
Molecular chaperones play central roles in sustaining protein homeostasis and preventing
protein aggregation. Most studies of these systems have been performed in bulk, providing …

Direct observation of chaperone-modulated talin mechanics with single-molecule resolution

S Chakraborty, D Chaudhuri, S Banerjee… - Communications …, 2022 - nature.com
Talin as a critical focal adhesion mechanosensor exhibits force-dependent folding dynamics
and concurrent interactions. Being a cytoplasmic protein, talin also might interact with …

Single-molecule mechanical studies of chaperones and their clients

M Rief, G Žoldák - Biophysics Reviews, 2022 - pubs.aip.org
Single-molecule force spectroscopy provides access to the mechanics of biomolecules.
Recently, magnetic and laser optical tweezers were applied in the studies of chaperones …

Direct observation of the mechanical role of bacterial chaperones in protein folding

D Chaudhuri, S Banerjee, S Chakraborty… - …, 2022 - ACS Publications
Protein folding under force is an integral source of generating mechanical energy in various
cellular processes, ranging from protein translation to degradation. Although chaperones …

Force‐regulated chaperone activity of BiP/ERdj3 is opposite to their homologs DnaK/DnaJ

S Banerjee, D Chowdhury, S Chakraborty… - Protein …, 2024 - Wiley Online Library
Polypeptide chains experience mechanical tension while translocating through cellular
tunnels, which are subsequently folded by molecular chaperones. However, interactions …

Intramolecular Covalent Bonds in Gram‐Positive Bacterial Surface Proteins

Q Ma, H Lei, Y Cao - ChemBioChem, 2022 - Wiley Online Library
Gram‐positive bacteria experience considerable mechanical perturbation when adhering to
host surfaces during colonization and infection. They have evolved various adhesion …

The Novel Chaperone Activity of p47 Modulates Force-Mediated Retrotranslocation from the Endoplasmic Reticulum to the Cytosol

S Haldar, D Chaudhuri - bioRxiv, 2024 - biorxiv.org
Protein quality control in the endoplasmic reticulum (ER) maintains cellular proteostasis by
regulating protein folding, assembly, and degradation. While protein translocation from the …

Force-regulated chaperone activity of BiP/ERdj3 is opposite to their homologs DnaK/DnaJ: explained by strain energy

S Banerjee, D Chowdhury, S Chakraborty, S Haldar - bioRxiv, 2023 - biorxiv.org
Polypeptide chains experiences mechanical tension while translocating through cellular
tunnel. In this scenario, interaction of tunnel-associated chaperones with the emerging …

Real-time microfluidics-magnetic tweezers connects conformational stiffness with energy landscape by a single experiment

S Chakraborty, D Chaudhuri, D Chaudhuri, V Singh… - bioRxiv, 2020 - biorxiv.org
Studies of free energy, kinetics or elasticity are common to most disciplines of science.
Detailed quantification of these properties demands number of specialized technologies …

The Mechanical Roles of Chaperons

D Chaudhuri, S Banerjee, S Chakraborty, S Halder - bioRxiv, 2020 - biorxiv.org
Protein folding under force is an integral source of generating mechanical power to carry out
diverse cellular functions. Though chaperones interact with proteins throughout the different …