Molecular origin of internal friction in intrinsically disordered proteins

D Das, S Mukhopadhyay - Accounts of Chemical Research, 2022 - ACS Publications
Conspectus Protein folding and dynamics are controlled by an interplay of thermal and
viscosity effects. The effect of viscous drag through the solvent molecules is described by the …

The biophysics of disordered proteins from the point of view of single-molecule fluorescence spectroscopy

J Cubuk, MD Stuchell-Brereton… - Essays in …, 2022 - portlandpress.com
Intrinsically disordered proteins (IDPs) and regions (IDRs) have emerged as key players
across many biological functions and diseases. Differently from structured proteins …

Single-molecule FRET unmasks structural subpopulations and crucial molecular events during FUS low-complexity domain phase separation

A Joshi, A Walimbe, A Avni, SK Rai, L Arora… - Nature …, 2023 - nature.com
Biomolecular condensates formed via phase separation of proteins and nucleic acids are
thought to be associated with a wide range of cellular functions and dysfunctions. We dissect …

Biomolecular condensates modulate membrane lipid packing and hydration

A Mangiarotti, M Siri, NW Tam, Z Zhao… - Nature …, 2023 - nature.com
Membrane wetting by biomolecular condensates recently emerged as a key phenomenon in
cell biology, playing an important role in a diverse range of processes across different …

Ultraslow biological water-like dynamics in waterless liquid protein

T Kistwal, A Mukhopadhyay, S Dasgupta… - The Journal of …, 2022 - ACS Publications
Fluorescence correlation spectroscopy and time-dependent fluorescence Stokes shift have
been employed to elucidate dynamics in different time scales, ranging from picoseconds to …

Activation and friction in enzymatic loop opening and closing dynamics

K Zinovjev, P Guénon, CA Ramos-Guzmán… - Nature …, 2024 - nature.com
Protein loop dynamics have recently been recognized as central to enzymatic activity,
specificity and stability. However, the factors controlling loop opening and closing kinetics …

Bridging Soft Interaction and Excluded Volume in Crowded Milieu through Subtle Protein Dynamics

S Majumdar, H Rastogi… - The Journal of Physical …, 2024 - ACS Publications
The impact of macromolecular crowding on biological macromolecules has been elucidated
through the excluded volume phenomenon and soft interactions. However, it has often been …

Memory Effects Explain the Fractional Viscosity Dependence of Rates Associated with Internal Friction: Simple Models and Applications to Butane Dihedral Rotation

B Roy, VM Hridya, A Mukherjee - The Journal of Physical …, 2024 - ACS Publications
Barrier-crossing rates of biophysical processes, ranging from simple conformational
changes to protein folding, often deviate from the Kramers prediction of an inverse viscosity …

Variation of structural and dynamical flexibility of myelin basic protein in response to guanidinium chloride

L Haris, R Biehl, M Dulle, A Radulescu… - International journal of …, 2022 - mdpi.com
Myelin basic protein (MBP) is intrinsically disordered in solution and is considered as a
conformationally flexible biomacromolecule. Here, we present a study on perturbation of …

Shear viscosity for finitely extensible chains with fluctuating internal friction and hydrodynamic interactions

R Kailasham, R Chakrabarti, J Ravi Prakash - Journal of Rheology, 2023 - pubs.aip.org
An exact solution of coarse-grained polymer models with fluctuating internal friction and
hydrodynamic interactions has not been proposed so far due to a one-to-all coupling …