Coarse master equations for peptide folding dynamics

NV Buchete, G Hummer - The Journal of Physical Chemistry B, 2008 - ACS Publications
We construct coarse master equations for peptide folding dynamics from atomistic molecular
dynamics simulations. A maximum-likelihood propagator-based method allows us to extract …

Helix formation via conformation diffusion search

CY Huang, Z Getahun, Y Zhu… - Proceedings of the …, 2002 - National Acad Sciences
The helix-coil transition kinetics of an α-helical peptide were investigated by time-resolved
infrared spectroscopy coupled with laser-induced temperature-jump initiation method …

Peptide folding kinetics from replica exchange molecular dynamics

NV Buchete, G Hummer - Physical Review E—Statistical, Nonlinear, and Soft …, 2008 - APS
We show how accurate kinetic information, such as the rates of protein folding and
unfolding, can be extracted from replica-exchange molecular dynamics (REMD) simulations …

What is the time scale for α-helix nucleation?

D De Sancho, RB Best - Journal of the American Chemical …, 2011 - ACS Publications
Helix formation is an elementary process in protein folding, influencing both the rate and
mechanism of the global folding reaction. Yet, because helix formation is less cooperative …

Length Dependent Helix− Coil Transition Kinetics of Nine Alanine-Based Peptides

T Wang, Y Zhu, Z Getahun, D Du… - The Journal of …, 2004 - ACS Publications
It is well-known that end caps and the peptide length can dramatically influence the
thermodynamics of the helix− coil transition. However, their roles in determining the kinetics …

[HTML][HTML] Energetics and structure of alanine-rich α-helices via adaptive steered molecular dynamics

Y Zhuang, HR Bureau, C Lopez, R Bucher, S Quirk… - Biophysical …, 2021 - cell.com
The energetics and hydrogen bonding profiles of the helix-to-coil transition were found to be
an additive property and to increase linearly with chain length, respectively, in alanine-rich α …

Exposing the Nucleation Site of Alpha Helix Folding: A Joint Experimental and Simulation Study

A Acharyya, Y Ge, H Wu, W DeGrado, V Voelz, F Gai - Biophysical Journal, 2019 - cell.com
α-helices being the most common secondary structures found ubiquitously in proteins, have
been studied extensively for elucidating its folding dynamics and mechanism. In addition …

Microscopic formulation of the Zimm-Bragg model for the helix-coil transition

AV Badasyan, A Giacometti, YS Mamasakhlisov… - Physical Review E …, 2010 - APS
A microscopic spin model is proposed for the phenomenological Zimm-Bragg model for the
helix-coil transition in biopolymers. This model is shown to provide the same thermophysical …

Direct assessment of the α-helix nucleation time

AL Serrano, MJ Tucker, F Gai - The Journal of Physical Chemistry …, 2011 - ACS Publications
The nucleation event in α-helix formation is a fundamental process in protein folding.
However, determining how quickly it takes place based on measurements of the relaxation …

Helix–coil transitions re-visited

HA Scheraga, JA Vila, DR Ripoll - Biophysical chemistry, 2002 - Elsevier
The thermally-induced helix–coil transition in polyamino acids is a good model for
determining the helix-forming propensities of amino acids but not for the two-state …