A spectroscopic overview of intramolecular hydrogen bonds of NH… O, S, N type

PE Hansen - Molecules, 2021 - mdpi.com
Intramolecular NH… O, S, N interactions in non-tautomeric systems are reviewed in a broad
range of compounds covering a variety of NH donors and hydrogen bond acceptors. 1H …

NMR methods for characterizing the basic side chains of proteins: electrostatic interactions, hydrogen bonds, and conformational dynamics

D Nguyen, C Chen, BM Pettitt, J Iwahara - Methods in enzymology, 2019 - Elsevier
NMR spectroscopy is a powerful tool for studying protein dynamics. Conventionally, NMR
studies on protein dynamics have probed motions of protein backbone NH, side-chain …

A TD-DFT investigation of photoinduced excited-state intermolecular multi-proton transfer dynamics of a 3-hydroxy-2-(thiophen-2-yl) chromen-4-one in methanol

JD Huang, W Teng, D Chen, H Ma - Journal of Molecular Liquids, 2018 - Elsevier
Density functional theory (DFT) and time-dependent density functional theory (TDDFT)
methods have been performed to investigate the ground and exited states intermolecular …

Probing the role of the protonation state of a minor groove-linker histidine in Exd-Hox–DNA binding

Y Jiang, TP Chiu, R Mitra, R Rohs - Biophysical Journal, 2024 - cell.com
DNA recognition and targeting by transcription factors (TFs) through specific binding are
fundamental in biological processes. Furthermore, the histidine protonation state at the TF …

The explicit role of electron exchange in the hydrogen bonded molecular complexes

EO Levina, MG Khrenova… - Journal of Computational …, 2021 - Wiley Online Library
We applied a set of advanced bonding descriptors to establish the hidden electron density
features and binding energy characteristics of intermolecular D H∙∙∙ A hydrogen bonds (O …

Potential role of DNA methylation as a facilitator of target search processes for transcription factors through interplay with methyl-CpG-binding proteins

CA Kemme, R Marquez, RH Luu… - Nucleic acids …, 2017 - academic.oup.com
Eukaryotic genomes contain numerous non-functional high-affinity sequences for
transcription factors. These sequences potentially serve as natural decoys that sequester …

NMR observation of intermolecular hydrogen bonds between protein tyrosine side-chain OH and DNA phosphate groups

B Yu, CC Pletka, J Iwahara - The Journal of Physical Chemistry B, 2020 - ACS Publications
Hydrogen bonds between protein side-chain hydroxyl (OH) and phosphate groups are one
of the most common types of intermolecular hydrogen bonds in protein–DNA/RNA …

Simultaneous enrichment and sequential separation of glycopeptides and phosphopeptides with poly-histidine functionalized microspheres

D Shang, C Chen, X Dong, Y Cui, Z Qiao… - … in Bioengineering and …, 2022 - frontiersin.org
Protein phosphorylation and glycosylation coordinately regulate numerous complex
biological processes. However, the main methods to simultaneously enrich them are based …

NMR-based investigations into target DNA search processes of proteins

J Iwahara, L Zandarashvili, CA Kemme, A Esadze - Methods, 2018 - Elsevier
To perform their function, transcription factors and DNA-repair/modifying enzymes must first
locate their targets in the vast presence of nonspecific, but structurally similar sites on …

Mobility of Histidine Side Chains Analyzed with 15N NMR Relaxation and Cross-Correlation Data: Insight into Zinc-Finger–DNA Interactions

CA Kemme, RH Luu, C Chen, CC Pletka… - The Journal of …, 2019 - ACS Publications
Due to chemical exchange, the mobility of histidine (His) side chains of proteins is typically
difficult to analyze by NMR spectroscopy. Using an NMR approach that is uninfluenced by …