Racing toward Fast and Effective <superscript>17</superscript> O Isotopic Labeling and Nuclear Magnetic Resonance Spectroscopy of N-Formyl-MLF-OH and Associated Building Blocks.
In: The journal of physical chemistry. B, Jg. 125 (2021-11-04), Heft 43, S. 11916-11926
academicJournal
Zugriff:
Solid-state 1 H, 13 C, and 15 N nuclear magnetic resonance (NMR) spectroscopy has been an essential analytical method in studying complex molecules and biomolecules for decades. While oxygen-17 ( 17 O) NMR is an ideal and robust candidate to study hydrogen bonding within secondary and tertiary protein structures for example, it continues to elude many. We discuss an improved multiple-turnover labeling procedure to develop a fast and cost-effective method to 17 O label fluoroenylmethyloxycarbonyl (Fmoc)-protected amino acid building blocks. This approach allows for inexpensive ($0.25 USD/mg) insertion of 17 O labels, an important barrier to overcome for future biomolecular studies. The 17 O NMR results of these building blocks and a site-specific strategy for labeled N -acetyl-MLF-OH and N-formyl-MLF-OH tripeptides are presented. We showcase growth in NMR development for maximizing sensitivity gains using emerging sensitivity enhancement techniques including population transfer, high-field dynamic nuclear polarization, and cross-polarization magic-angle spinning cryoprobes.
Titel: |
Racing toward Fast and Effective <superscript>17</superscript> O Isotopic Labeling and Nuclear Magnetic Resonance Spectroscopy of N-Formyl-MLF-OH and Associated Building Blocks.
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Autor/in / Beteiligte Person: | Ha, M ; Nader, S ; Pawsey, S ; Struppe, J ; Monette, M ; Mansy, SS ; Boekhoven, J ; Michaelis, VK |
Zeitschrift: | The journal of physical chemistry. B, Jg. 125 (2021-11-04), Heft 43, S. 11916-11926 |
Veröffentlichung: | Washington, D.C. : American Chemical Society, c1997-, 2021 |
Medientyp: | academicJournal |
ISSN: | 1520-5207 (electronic) |
DOI: | 10.1021/acs.jpcb.1c07397 |
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