Next Article in Journal
Viewing SARS-CoV-2 Nucleocapsid Protein in Terms of Molecular Flexibility
Next Article in Special Issue
Idebenone Decreases Aβ Pathology by Modulating RAGE/Caspase-3 Signaling and the Aβ Degradation Enzyme NEP in a Mouse Model of AD
Previous Article in Journal
Ablation of Lrp4 in Schwann Cells Promotes Peripheral Nerve Regeneration in Mice
Previous Article in Special Issue
Cell Death via Lipid Peroxidation and Protein Aggregation Diseases

17O NMR Spectroscopy: A Novel Probe for Characterizing Protein Structure and Folding

Department of New Biology, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Korea
Research Center for Bioconvergence Analysis, Korea Basic Science Institute, Cheongju 28119, Korea
Department of Bio-Analytical Science, University of Science and Technology, Daejeon 34113, Korea
Graduate School of Analytical Science and Technology, Chungnam National University, Daejeon 34134, Korea
Research Headquarters, Korea Brain Research Institute, Daegu 41068, Korea
Authors to whom correspondence should be addressed.
Academic Editor: Sanford I. Bernstein
Biology 2021, 10(6), 453;
Received: 7 April 2021 / Revised: 14 May 2021 / Accepted: 18 May 2021 / Published: 21 May 2021
(This article belongs to the Special Issue Protein Folding, Aggregation, and Cell Death)
Oxygen is one of the most abundant atoms in the body. Biomolecules, including most proteins, contain a significant number of oxygen atoms, contributing to the maintenance of the structural and functional integrity of biomolecules. Despite these favorable attributes, detailed characterization of these atoms has been challenging, particularly because of the lack of an appropriate analytical tool. Here, we review recent developments in biomolecular 17O nuclear magnetic resonance spectroscopy, which can directly report the physicochemical properties of oxygen atoms in proteins or related biomolecules. We summarize recent studies that successfully employed this technique to elucidate various structural and functional features of proteins and protein complexes. Finally, we discuss a few promising benefits of this methodology, which we believe ensure its further development as a novel and powerful tool for investigating protein structure and folding.
Oxygen is a key atom that maintains biomolecular structures, regulates various physiological processes, and mediates various biomolecular interactions. Oxygen-17 (17O), therefore, has been proposed as a useful probe that can provide detailed information about various physicochemical features of proteins. This is attributed to the facts that (1) 17O is an active isotope for nuclear magnetic resonance (NMR) spectroscopic approaches; (2) NMR spectroscopy is one of the most suitable tools for characterizing the structural and dynamical features of biomolecules under native-like conditions; and (3) oxygen atoms are frequently involved in essential hydrogen bonds for the structural and functional integrity of proteins or related biomolecules. Although 17O NMR spectroscopic investigations of biomolecules have been considerably hampered due to low natural abundance and the quadruple characteristics of the 17O nucleus, recent theoretical and technical developments have revolutionized this methodology to be optimally poised as a unique and widely applicable tool for determining protein structure and dynamics. In this review, we recapitulate recent developments in 17O NMR spectroscopy to characterize protein structure and folding. In addition, we discuss the highly promising advantages of this methodology over other techniques and explain why further technical and experimental advancements are highly desired. View Full-Text
Keywords: 17O NMR spectroscopy; protein structures; protein folding; oxygen-17 17O NMR spectroscopy; protein structures; protein folding; oxygen-17
Show Figures

Figure 1

MDPI and ACS Style

Muniyappan, S.; Lin, Y.; Lee, Y.-H.; Kim, J.H. 17O NMR Spectroscopy: A Novel Probe for Characterizing Protein Structure and Folding. Biology 2021, 10, 453.

AMA Style

Muniyappan S, Lin Y, Lee Y-H, Kim JH. 17O NMR Spectroscopy: A Novel Probe for Characterizing Protein Structure and Folding. Biology. 2021; 10(6):453.

Chicago/Turabian Style

Muniyappan, Srinivasan, Yuxi Lin, Young-Ho Lee, and Jin H. Kim. 2021. "17O NMR Spectroscopy: A Novel Probe for Characterizing Protein Structure and Folding" Biology 10, no. 6: 453.

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

Back to TopTop