Modeling of the formation of triple complexes of the essential trace element iron with riboflavin and essential amino acids
https://doi.org/10.37493/2307-910X.2023.3.10
Abstract
In this work, we simulated the process of formation of triple complexes of the essential trace element iron with riboflavin and essential amino acids. The simulation was carried out in the QChem software using the IQmol molecular editor. To begin with, the modeling of the molecules of essential amino acids was carried out: L-valine, L-leucine, L-isoleucine, Lmethionine, L-threonine, L-lysine, L-phenylalanine and L-tryptophan. Modeling was carried out by the interaction of the iron atom with various pairs of nitrogen heteroatom and enol oxygen of riboflavin, as well as with the carboxyl group and α-amino group of the amino acid. As a result, it was found that the interaction of the trace element iron with riboflavin and essential amino acids is energetically favorable (∆E > 2575 kcal/mol) and chemically stable (0.075 ≤ η ≤ 0.138 eV). Based on the data obtained, the most probable configuration of the molecular complex was determined - interaction with riboflavin through N5 in the pyrazine ring and enol oxygen attached to the C4 atom in the pyrimidine ring of riboflavin. The molecular system that has the highest difference in total energy (∆E = 2577.501) and chemical hardness (η = 0.138 eV), and therefore the most energetically favorable and chemically stable, is the copper valinatoriboflavinate molecular complex, in which the interaction of iron with riboflavin occurs through N5 in the pyrazine ring and enol oxygen attached to the C4 atom in the pyrimidine ring riboflavin.
Supporting agencies: The study was financially supported by the Council for Grants of the President of the Russian Federation (project MK-478.2022.5). The studies were carried out using the equipment of the Center for Collective Use of the North Caucasus Federal University with the financial support of the Ministry of Education and Science of Russia, the unique identifier of the RF project is 2296.61321X0029.
About the Authors
A. V. Blinov
North-Caucasian Federal University
Russian Federation
Russian Federation
Andrey V. Blinov – PhD in Technical Science, Head of the Department of Physics and Technology of Nanostructures and Materials, Faculty of Physics and Technology,
1, Pyshkin st., Stavropol, 355029
A. A. Gvozdenko
North-Caucasian Federal University
Russian Federation
Russian Federation
Alexey A. Gvozdenko – Assistant of the Department of Physics and Technology of Nanostructures and Materials, Faculty of Physics and Technology,
1, Pyshkin st., Stavropol, 355029
A. B. Golik
North-Caucasian Federal University
Russian Federation
Russian Federation
Alexey B. Golik – Assistant of the Department of Physics and Technology of Nanostructures and Materials, Faculty of Physics and Technology,
1, Pyshkin st., Stavropol, 355029
M. A. Kolodkin
North-Caucasian Federal University
Russian Federation
Russian Federation
Maxim A. Kolodkin – Head of the Educational and Laboratory Complex of the Department of Physics and Technology of Nanostructures and Materials of the Faculty of Physics and Technology,
1, Pyshkin st., Stavropol, 355029
M. A. Pirogov
North-Caucasian Federal University
Russian Federation
Russian Federation
Maxim A. Pirogov – Student of the Department of Physics and Technology of Nanostructures and Materials, Faculty of Physics and Technology,
1, Pyshkin st., Stavropol, 355029
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Review
For citations:
Blinov A.V., Gvozdenko A.A., Golik A.B., Kolodkin M.A., Pirogov M.A. Modeling of the formation of triple complexes of the essential trace element iron with riboflavin and essential amino acids. Modern Science and Innovations. 2023;(3):108-116. (In Russ.) https://doi.org/10.37493/2307-910X.2023.3.10
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