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Natural chirality of methylene sites applied to the recognition of origin and to the study of biochemical mechanisms
Author(s) -
Martin Maryvonne L.,
Zhang Benli,
Martin Gérard J.
Publication year - 1983
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/0014-5793(83)80692-9
Subject(s) - chirality (physics) , methylene , enantiomer , chemistry , deuterium , stereochemistry , abundance (ecology) , natural (archaeology) , amino acid , computational chemistry , organic chemistry , biochemistry , biology , physics , ecology , chiral symmetry , quantum mechanics , nambu–jona lasinio model , quark , paleontology
Naturel abundance deuterium NMR has been applied to the quantitative determination of natural methylene chirality in amino acids of different configurations and in ethanols of different origins. An enantiomeric enrichment is detected for aspartic acid of the L series obtained from fermentation and the technique therefore provides an absolute method for identifying the natural origin of a given substance. In ethanols of different origins the pro‐ R and pro‐ S positions appear as naturally equally populated at the present level of precision of the experiments. These results provide a new source of information about reaction mechanisms in the natural conditions.