Structure of condensed phase peptides: Insights from vibrational circular dichroism and Raman optical activity techniques

TA Keiderling - Chemical reviews, 2020 - ACS Publications
Peptides and proteins are naturally chiral molecular systems so that sensing their structure
and conformation with chirality-based spectral methods is an obvious and long-used …

Recent trends in chiroptical spectroscopy: theory and applications of vibrational circular dichroism and Raman optical activity

M Krupová, J Kessler, P Bouř - ChemPlusChem, 2020 - Wiley Online Library
Chiroptical spectroscopy exploring the interaction of matter with polarized light provides
many tools for molecular structure and interaction studies. Here, some recent discoveries …

Chirality induction and amplification in supramolecular systems exhibiting vibrational optical activity

A Kaczor - Physical Chemistry Chemical Physics, 2023 - pubs.rsc.org
Vibrational optical activity (VOA) refers to two vibrational techniques: vibrational circular
dichroism (VCD) and Raman optical activity (ROA) that are sensitive both to the chirality and …

Structural insight into tau protein's paradox of intrinsically disordered behavior, self-acetylation activity, and aggregation

Y Luo, B Ma, R Nussinov, G Wei - The journal of physical …, 2014 - ACS Publications
Tau is an intrinsically disordered protein (IDP) implicated in Alzheimer's disease. Recently,
tau proteins were discovered to be able to catalyze self-acetylation, which may promote its …

Inspecting chiral molecules by Raman optical activity spectroscopy

V Parchaňský, J Kapitán, P Bouř - RSC Advances, 2014 - pubs.rsc.org
Raman optical activity (ROA) is a relatively new method combining the variability of
scattering experiments with the structural sensitivity of chiral spectroscopy. Typically, ROA …

Vibrational Optical Activity of amyloid fibrils

Z Majka, K Kwiecień, A Kaczor - ChemPlusChem, 2024 - Wiley Online Library
Amyloid fibrils are supramolecular systems showing distinct chirality at different levels of
their complex multilayered architectures. Due to the regular long‐range chiral organization …

Conformational distribution and α-helix to β-sheet transition of human amylin fragment dimer

R Qi, Y Luo, B Ma, R Nussinov, G Wei - Biomacromolecules, 2014 - ACS Publications
Experiments suggested that the fibrillation of the 11–25 fragment (hIAPP (11–25)) of human
islet amyloid polypeptide (hIAPP or amylin) involves the formation of transient α-helical …

Structure and vibrational motion of insulin from Raman optical activity spectra

S Yamamoto, J Kaminský, P Bouř - Analytical Chemistry, 2012 - ACS Publications
The Raman optical activity (ROA) spectroscopic technique has been applied in the past to
many biologically relevant systems including peptides, proteins, sugars, and even viruses …

Absence of amyloid-beta in lenses of Alzheimer patients: a confocal Raman microspectroscopic study

R Michael, C Otto, A Lenferink, E Gelpi… - Experimental Eye …, 2014 - Elsevier
We have compared the protein profiles in plaques and tangles in the hippocampus of post-
mortem Alzheimer brains and in opaque and clear regions in the deep cortex of eye lenses …

Raman optical activity of human α‐synuclein in intrinsically disordered, micelle‐bound α‐helical, molten globule and oligomeric β‐sheet state

C Mensch, A Konijnenberg, R Van Elzen… - Journal of Raman …, 2017 - Wiley Online Library
Alpha‐synuclein (α‐syn) is a 140 residue protein that plays a central role in Parkinson's
disease and other neurological disorders. The precise function and pathological properties …