Laser temperature jump study of the helix⇌ coil kinetics of an alanine peptide interpreted with a 'kinetic zipper'model

PA Thompson, WA Eaton, J Hofrichter - Biochemistry, 1997 - ACS Publications
The kinetics of the helix⇌ coil transition of an alanine-based peptide following a laser-
induced temperature jump were monitored by the fluorescence of an N-terminal probe, 4 …

The helix-coil kinetics of a heteropeptide

PA Thompson, V Munoz, GS Jas… - The Journal of …, 2000 - ACS Publications
We have measured the kinetics of the helix-coil transition for the synthetic 21-residue
peptide Ac-WAAAH+ (AAAR+ A) 3A-NH2 initiated by nanosecond laser temperature jumps …

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 …

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 …

Time-Resolved Infrared Study of the Helix−Coil Transition Using 13C-Labeled Helical Peptides

CY Huang, Z Getahun, T Wang… - Journal of the …, 2001 - ACS Publications
Helices are ubiquitous in proteins. As such, the helix-coil transition has been studied
extensively. Seminal works1 of Schellman, Zimm and Bragg, Lifson and Roig, and Poland …

Dynamics of the primary processes of protein folding: helix nucleation

JH Werner, RB Dyer, RM Fesinmeyer… - The Journal of …, 2002 - ACS Publications
We report on the folding and unfolding dynamics of α-helix nucleation in two model helical
peptides. One of the peptides studied unfolds at lower temperatures (cold denatures) in …

α-Helix peptide folding and unfolding activation barriers: a nanosecond UV resonance Raman study

IK Lednev, AS Karnoup, MC Sparrow… - Journal of the American …, 1999 - ACS Publications
We used UV resonance Raman spectroscopy to characterize the equilibrium conformation
and the kinetics of thermal denaturation of a 21 amino acid, mainly alanine, α-helical peptide …

Effect of viscosity on the kinetics of α-helix and β-hairpin formation

GS Jas, WA Eaton, J Hofrichter - The Journal of Physical …, 2001 - ACS Publications
Nanosecond laser temperature jumps and fluorescence detection were used to measure the
effect of viscosity on the kinetics of α-helix and β-hairpin formation in peptides containing 21 …

Helix nucleation kinetics from molecular simulations in explicit solvent

G Hummer, AE García, S Garde - Proteins: Structure, Function …, 2001 - Wiley Online Library
We study the reversible folding/unfolding of short Ala and Gly‐based peptides by molecular
dynamics simulations of all‐atom models in explicit water solvent. A kinetic analysis shows …

Conformational diffusion and helix formation kinetics

G Hummer, AE Garcia, S Garde - Physical Review Letters, 2000 - APS
The time, temperature, and sequence dependences of helix formation kinetics of fully
atomistic peptide models in explicit solvent are described quantitatively by a diffusive search …