When fast is better: protein folding fundamentals and mechanisms from ultrafast approaches

V Munoz, M Cerminara - Biochemical Journal, 2016 - portlandpress.com
Protein folding research stalled for decades because conventional experiments indicated
that proteins fold slowly and in single strokes, whereas theory predicted a complex interplay …

How cooperative are protein folding and unfolding transitions?

P Malhotra, JB Udgaonkar - Protein Science, 2016 - Wiley Online Library
A thermodynamically and kinetically simple picture of protein folding envisages only two
states, native (N) and unfolded (U), separated by a single activation free energy barrier, and …

Twist-open mechanism of DNA damage recognition by the Rad4/XPC nucleotide excision repair complex

Y Velmurugu, X Chen… - Proceedings of the …, 2016 - National Acad Sciences
DNA damage repair starts with the recognition of damaged sites from predominantly normal
DNA. In eukaryotes, diverse DNA lesions from environmental sources are recognized by the …

Studying protein–protein binding through T-jump induced dissociation: transient 2D IR spectroscopy of insulin dimer

XX Zhang, KC Jones, A Fitzpatrick… - The Journal of …, 2016 - ACS Publications
Insulin homodimer associates through the coupled folding and binding of two partially
disordered monomers. We aim to understand this dynamics by observing insulin dimer …

[HTML][HTML] Analytical description of degradation-relaxation transformations in nanoinhomogeneous spinel ceramics

O Shpotyuk, M Brunner, I Hadzaman, V Balitska… - Nanoscale research …, 2016 - Springer
Mathematical models of degradation-relaxation kinetics are considered for jammed thick-film
systems composed of screen-printed spinel Cu 0.1 Ni 0.1 Co 1.6 Mn 1.2 O 4 and conductive …

Biophysical insights from temperature-dependent single-molecule förster resonance energy transfer

ED Holmstrom, DJ Nesbitt - Annual Review of Physical …, 2016 - annualreviews.org
Single-molecule fluorescence microscopy techniques can be used in combination with
micrometer length-scale temperature control and Förster resonance energy transfer (FRET) …

Observation of α-helical hydrogen-bond cooperativity in an intact protein

J Li, Y Wang, J Chen, Z Liu, A Bax… - Journal of the American …, 2016 - ACS Publications
The presence and extent of hydrogen-bonding (H-bonding) cooperativity in proteins remains
a fundamental question, which in the past has been studied extensively, mostly by infrared …

Secondary structural change can occur diffusely and not modularly during protein folding and unfolding reactions

P Malhotra, JB Udgaonkar - Journal of the American Chemical …, 2016 - ACS Publications
A major goal of protein folding studies is to understand the structural basis of the coupling
between stabilizing interactions, which leads to cooperative conformational change. The …

Using kinetic network models to probe non-native salt-bridge effects on α-helix folding

G Zhou, VA Voelz - The journal of physical chemistry B, 2016 - ACS Publications
Salt–bridge interactions play an important role in stabilizing many protein structures, and
have been shown to be designable features for protein design. In this work, we study the …

Analysis of the pH-dependent thermodynamic stability, local motions, and microsecond folding kinetics of carbonmonoxycytochrome c

R Kumar - Archives of Biochemistry and Biophysics, 2016 - Elsevier
This paper analyzes the effect of pH on thermodynamic stability, low-frequency local motions
and microsecond folding kinetics of carbonmonoxycytochrome c (Cyt-CO) all across the …