Biomolecular infrared spectroscopy: making time for dynamics

NT Hunt - Chemical Science, 2024 - pubs.rsc.org
Time resolved infrared spectroscopy of biological molecules has provided a wealth of
information relating to structural dynamics, conformational changes, solvation and …

Transparent window 2D IR spectroscopy of proteins

MC Thielges - The Journal of chemical physics, 2021 - pubs.aip.org
Proteins are complex, heterogeneous macromolecules that exist as ensembles of
interconverting states on a complex energy landscape. A complete, molecular-level …

Noncovalent π Interactions in Mutated Aquomet-Myoglobin Proteins: A QM/MM and Local Vibrational Mode Study

JJ Antonio, E Kraka - Biochemistry, 2023 - ACS Publications
Protein dynamics and function is strongly connected to the energy flow taking place.
Myoglobin (Mb) and its mutations are ideal systems to study the process of vibrational …

Vibrational Energy Landscapes and Energy Flow in GPCRs

H Poudel, DJ Wales, DM Leitner - The Journal of Physical …, 2024 - ACS Publications
We construct and analyze disconnectivity graphs to provide the first graphical representation
of the vibrational energy landscape of a protein, in this study β2AR, a G-protein coupled …

Time-resolved spectroscopic mapping of vibrational energy flow in proteins: Understanding thermal diffusion at the nanoscale

Y Mizutani, M Mizuno - The Journal of Chemical Physics, 2022 - pubs.aip.org
Vibrational energy exchange between various degrees of freedom is critical to barrier-
crossing processes in proteins. Hemeproteins are well suited for studying vibrational energy …

Intermolecular Protein–Water Coupling Impedes the Coupling Between the Amide A and Amide I Mode in Interfacial Proteins

J Tan, M Wang, Z Ni, R Pei, F Shi, S Ye - Langmuir, 2024 - ACS Publications
The coupling between different vibrational modes in proteins is essential for chemical
dynamics and biological functions and is linked to the propagation of conformational …

Unnatural Amino Acids for Biological Spectroscopy and Microscopy

R Feng, M Wang, W Zhang, F Gai - Chemical Reviews, 2024 - ACS Publications
Due to advances in methods for site-specific incorporation of unnatural amino acids (UAAs)
into proteins, a large number of UAAs with tailored chemical and/or physical properties have …

Thermal Energy Transport through Nonbonded Native Contacts in Protein

T Wang, T Yamato, W Sugiura - The Journal of Physical Chemistry …, 2024 - ACS Publications
Within the protein interior, where we observe various types of interactions, nonuniform flow
of thermal energy occurs along the polypeptide chain and through nonbonded native …

Locating dynamic contributions to allostery via determining rates of vibrational energy transfer

H Poudel, DM Leitner - The Journal of chemical physics, 2023 - pubs.aip.org
Determining rates of energy transfer across non-covalent contacts for different states of a
protein can provide information about dynamic and associated entropy changes during …

Orthogonal translation with 5‐cyanotryptophan as an infrared probe for local structural information, electrostatics, and hydrogen bonding

GJ von Freiherr Sass, M Blain‐Hartung… - Protein …, 2023 - Wiley Online Library
Orthogonal translation is an efficient tool that provides many valuable spectral probes
capable of covering different parts of the electromagnetic spectrum and thus enabling …