Interaction between super-reduced cobalamin and selenite
- Authors: Dereven’kov I.A.1, Salnikov D.S.1, Makarov S.V.1
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Affiliations:
- Ivanovo State University of Chemistry and Technology
- Issue: Vol 91, No 12 (2017)
- Pages: 2404-2408
- Section: Structure of Matter and Quantum Chemistry
- URL: https://bakhtiniada.ru/0036-0244/article/view/169804
- DOI: https://doi.org/10.1134/S003602441711005X
- ID: 169804
Cite item
Abstract
The kinetics of the reaction between the two-electron reduced form of cobalamin (super-reduced cobalamin, cob(I)alamin, or Cbl(I)) and sodium selenite in an alkaline medium is studied spectrophotometrically. It is shown that the selenite rapidly oxidizes Cbl(I) to cob(II)alamin (Cbl(II)). It is established that the active form of the oxidant is the protonated selenite anion (HSeO3-), which receives six electrons during the reaction and transforms into HSe–. The reactions of cob(I)alamin oxidation by selenite and sulfite are compared.
Keywords
About the authors
I. A. Dereven’kov
Ivanovo State University of Chemistry and Technology
Author for correspondence.
Email: derevenkov@gmail.com
Russian Federation, Ivanovo, 153000
D. S. Salnikov
Ivanovo State University of Chemistry and Technology
Email: derevenkov@gmail.com
Russian Federation, Ivanovo, 153000
S. V. Makarov
Ivanovo State University of Chemistry and Technology
Email: derevenkov@gmail.com
Russian Federation, Ivanovo, 153000
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