Manipulating Biopolymer Dynamics by Anisotropic Nanoconfinement

TL;DR

This study investigates how the shape of nano-sized confinements influences biopolymer dynamics, revealing that geometries resembling transition states optimize folding rates, with implications for nanotech and pharmaceuticals.

Contribution

It demonstrates the impact of confinement shape on protein folding dynamics using simulations, highlighting shape selectivity for optimizing reaction conditions.

Findings

Folding rates are maximized when confinement shape resembles transition states.

Shape of confinement significantly affects structural properties of transition states.

Insights can guide nanotechnology and pharmaceutical applications.

Abstract

How the geometry of nano-sized confinement affects dynamics of biomaterials is interesting yet poorly understood. An elucidation of structural details upon nano-sized confinement may benefit manufacturing pharmaceuticals in biomaterial sciences and medicine. The behavior of biopolymers in nano-sized confinement is investigated using coarse-grained models and molecular simulations. Particularly, we address the effects of shapes of a confinement on protein folding dynamics by measuring folding rates and dissecting structural properties of the transition states in nano-sized spheres and ellipsoids. We find that when the form of a confinement resembles the geometrical properties of the transition states, the rates of folding kinetics are most enhanced. This knowledge of shape selectivity in identifying optimal conditions for reactions will have a broad impact in nanotechnology and pharmaceutical sciences.