Photo-CIDNP NMR Spectroscopy of Amino Acids and Proteins

2013 ◽  
pp. 229-300 ◽  
Author(s):  
Lars T. Kuhn
Keyword(s):  
Amino Acids ◽  
Nmr Spectroscopy

31P NMR Spectroscopy as a Powerful Tool for the Determination of Enantiomeric Excess and Absolute Configurations of α-Amino Acids

2003 ◽  
Vol 42 (4) ◽  
pp. 1006-1013 ◽  
Author(s):  
Judith Bravo ◽  
Carlos Cativiela ◽  
Julio E. Chaves ◽  
Rafael Navarro ◽  
Esteban P. Urriolabeitia
Keyword(s):  
Amino Acids ◽  
Nmr Spectroscopy ◽  
31P Nmr ◽  
Enantiomeric Excess ◽  
31P Nmr Spectroscopy

Discrimination of Enantiomers of Amides with Two Stereogenic Centers Enabled by Chiral Bisthiourea Derivatives Using 1H NMR Spectroscopy

2021 ◽  
Author(s):  
Hanchang Zhang ◽  
Hongmei Zhao ◽  
Jie Wen ◽  
Zhanbin Zhang ◽  
Pericles Stavropoulos ◽  
...  
Keyword(s):  
Amino Acids ◽  
Nmr Spectroscopy ◽  
1H Nmr ◽  
1H Nmr Spectroscopy ◽  
Chiral Recognition ◽  
Stereogenic Centers

Enantiomers of a few new amides containing two stereogenic centers have been derived from D- and L-α-amino acids as guests for chiral recognition by 1H NMR spectroscopy. A variety of...

scholarly journals Comparison of Physicochemical Properties and Metabolite Profiling Using 1H NMR Spectroscopy of Korean Wheat Malt

Foods ◽  
2020 ◽  
Vol 9 (10) ◽  
pp. 1436
Author(s):  
Yang Soo Byeon ◽  
Dabeen Lee ◽  
Young-Shick Hong ◽  
Seung-Taik Lim ◽  
Sang Sook Kim ◽  
...  
Keyword(s):  
Amino Acids ◽  
Nuclear Magnetic Resonance ◽  
Nmr Spectroscopy ◽  
Enzyme Activities ◽  
Metabolite Profiling ◽  
1H Nmr Spectroscopy ◽  
Wheat Varieties ◽  
1H Nuclear Magnetic Resonance ◽  
The Us ◽  
Metabolic Properties

The objective of this study was to compare the physicochemical, enzymatic, and metabolic properties of two control wheat malts imported from Germany and the US to those of malts made from three Korean wheat varieties: Triticumaestivum L., var. Anzunbaengi, Jokyung, and Keumkang. The qualities and enzyme activities of the Korean wheat malts were generally similar to those of the control wheat malts. The Korean wheat malts had slightly lower diastatic power and enzyme activities related to saccharification. The analysis of metabolites in the wheat malt samples was performed using 1H nuclear magnetic resonance (NMR) metabolomics, which identified 32 metabolites that differed significantly among the samples. Most amino acids and lipids were more abundant in the Korean wheat malts than in the control wheat malts. These differences among malts could influence the quality and flavor of wheat beers. Further brewing studies are necessary to identify the association between beer quality and individual malt metabolites.

14N Solid-State NMR Spectroscopy of Amino Acids

ChemPhysChem ◽  
2016 ◽  
Vol 17 (23) ◽  
pp. 4011-4027 ◽  
Author(s):  
Stanislav L. Veinberg ◽  
Zachary W. Friedl ◽  
Austin W. Lindquist ◽  
Brianna Kispal ◽  
Kristopher J. Harris ◽  
...  
Keyword(s):  
Amino Acids ◽  
Solid State ◽  
Nmr Spectroscopy ◽  
Solid State Nmr ◽  
Solid State Nmr Spectroscopy

scholarly journals Conformational promiscuity in triazolamers derived from quaternary amino acids mimics peptide behaviour

2015 ◽  
Vol 13 (44) ◽  
pp. 10797-10801 ◽  
Author(s):  
Jordi Solà ◽  
Michael Bolte ◽  
Ignacio Alfonso
Keyword(s):  
Amino Acids ◽  
Nmr Spectroscopy ◽  
Click Chemistry ◽  
Secondary Structures ◽  
X Ray Diffraction ◽  
X Ray ◽  
Natural Peptides

Oligomers made by click chemistry display a duality of secondary structures similar to natural peptides as inferred by NMR spectroscopy and X-ray diffraction experiments.

13C-Chemische Verschiebungen von Aminosäuren und Peptiden / 13C-NMR Chemical Shifts of Amino Acids and Peptides

1971 ◽  
Vol 26 (3) ◽  
pp. 213-222 ◽  
Author(s):  
Wolfgang Voelter ◽  
Günther Jung ◽  
Eberhard Breitmaier ◽  
Ernst Bayer
Keyword(s):  
Amino Acids ◽  
Fourier Transform ◽  
Nmr Spectroscopy ◽  
Nmr Spectra ◽  
Chemical Shifts ◽  
Analytical Tool ◽  
Reasonable Time ◽  
C Isotopes ◽  
Direct Recording ◽  
C Nmr

Pulse - Fourier - Transform-13C-NMR spectroscopy allowed the direct recording of 13C-NMR spectra of amino acids and peptides with natural abundance of 13C isotopes within a reasonable time. The 13C-signals of more than 50 free and protected amino acids and several peptides were assigned. 13C-NMR spectroscopy gives valuable information about the carbon skeleton, thus offering a new analytical tool for the study of biopolymers and their constituents.

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