Book ChapterDOI
Deuterium NMR in the Study of Site-Specific Natural Isotope Fractionation (SNIF-NMR)
Maryvonne L. Martin,Gérard J. Martin +1 more
- pp 1-61
TLDR
In this paper, the isotope content and the ratio of deuterium and hydrogen atoms in a given molecular species, D/H, are not constant on Earth and the original approaches provided by the NMR study of Site-Specc Natural Isotope Fractionation of hydrogen must be seen in this context.Abstract:
The isotope content and in particular the ratio of deuterium and hydrogen atoms in a given molecular species, D/H, are not constant on Earth. On the basis of the overall molecular isotope contents accessible by mass spectrometry techniques, important information has been obtained on biochemical and physiological aspects of biosyntheses under natural conditions. The original approaches provided by the NMR study of Site-Specc Natural Isotope Fractionation of hydrogen must be seen in this context.read more
Citations
More filters
Journal ArticleDOI
The use of 2H, 13C, 15N multidimensional NMR to study the structure and dynamics of proteins
Kevin H. Gardner,Lewis E. Kay +1 more
TL;DR: Developments in isotopic labeling strategies, NMR pulse sequences, and structure-determination protocols that have facilitated this advance and hold promise for future NMR-based structural studies of even larger systems are reviewed.
Journal ArticleDOI
Systematics of 2H patterns in natural compounds and its importance for the elucidation of biosynthetic pathways
TL;DR: The correlations and regularities of the 2H-patterns of organic compounds found are a new reliable tool for the elucidation of biosynthetic pathways and origin assignments.
Modern NMR Techniques for Structure Elucidation
TL;DR: In this paper, a review of the most useful methods for high-resolution NMR is presented, including 2D homo-and hetero-nuclear chemical shift correlation by direct and by relayed coherence transfer, and 1D polarization transfer.
Journal ArticleDOI
Fundamentals and systematics of the non-statistical distributions of isotopes in natural compounds
TL;DR: In this article, it is shown that a partial thermodynamic order can eventually be attained for defined positions and compounds under steady-state conditions of metabolism, and the resulting general theory of the origin of non-statistical isotope distributions in biological systems permits the interpretation and prediction of isotope patterns and provides the scientific basis for the elucidation of biosyntheses and origin assignments of natural compounds.
Journal ArticleDOI
Export of Carbon from Chloroplasts at Night
TL;DR: It is concluded that most carbon leaves chloroplasts at night as Glc, maltose, or higher maltodextrins under normal conditions.
References
More filters
Journal ArticleDOI
Stable isotopes in precipitation
TL;DR: In this paper, the isotopic fractionation of water in simple condensation-evaporation processes is considered quantitatively on the basis of the fractionation factors given in section 1.2.
Book
Principles of nuclear magnetic resonance in one and two dimensions
TL;DR: In this paper, the dynamics of nuclear spin systems were studied by two-dimensional exchange spectroscopy and nuclear magnetic resonance imaging (NEMI) imaging, and two different correlation methods based on coherence transfer were proposed.
Journal ArticleDOI
Isotopic standards for carbon and oxygen and correction factors for mass-spectrometric analysis of carbon dioxide
TL;DR: In this paper, Niee's and Solenhofen standards were compared to the Chicago PDB standard for carbon and oxygen isotope ratios, and the correction factors for instrumental effects and for the nature of the mass spectra were derived.
Journal ArticleDOI
On the Isotopic Chemistry of Carbonates and a Paleotemperature Scale
TL;DR: In this paper, the temperature variation of the fractionation of oxygen in exchange reactions between dissolved carbonate and water and between calcite and water was calculated on theoretical grounds, and checked experimentally.