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Replacement of the Cobalt Center of Vitamin B(12) by Nickel: Nibalamin and Nibyric Acid Prepared from Metal‐Free B(12) Ligands Hydrogenobalamin and Hydrogenobyric Acid
The (formal) replacement of Co in cobalamin (Cbl) by Ni(II) generates nibalamin (Nibl), a new transition‐metal analogue of vitamin B(12). Described here is Nibl, synthesized by incorporation of a Ni(II) ion into the metal‐free B(12) ligand hydrogenobalamin (Hbl), itself prepared from hydrogenobyric...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7693184/ https://www.ncbi.nlm.nih.gov/pubmed/32686888 http://dx.doi.org/10.1002/anie.202008407 |
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author | Kieninger, Christoph Wurst, Klaus Podewitz, Maren Stanley, Maria Deery, Evelyne Lawrence, Andrew D. Liedl, Klaus R. Warren, Martin J. Kräutler, Bernhard |
author_facet | Kieninger, Christoph Wurst, Klaus Podewitz, Maren Stanley, Maria Deery, Evelyne Lawrence, Andrew D. Liedl, Klaus R. Warren, Martin J. Kräutler, Bernhard |
author_sort | Kieninger, Christoph |
collection | PubMed |
description | The (formal) replacement of Co in cobalamin (Cbl) by Ni(II) generates nibalamin (Nibl), a new transition‐metal analogue of vitamin B(12). Described here is Nibl, synthesized by incorporation of a Ni(II) ion into the metal‐free B(12) ligand hydrogenobalamin (Hbl), itself prepared from hydrogenobyric acid (Hby). The related Ni(II) corrin nibyric acid (Niby) was similarly synthesized from Hby, the metal‐free cobyric acid ligand. The solution structures of Hbl, and Niby and Nibl, were characterized by spectroscopic studies. Hbl features two inner protons bound at N2 and N4 of the corrin ligand, as discovered in Hby. X‐ray analysis of Niby shows the structural adaptation of the corrin ligand to Ni(II) ions and the coordination behavior of Ni(II). The diamagnetic Niby and Nibl, and corresponding isoelectronic Co(I) corrins, were deduced to be isostructural. Nibl is a structural mimic of four‐coordinate base‐off Cbls, as verified by its ability to act as a strong inhibitor of bacterial adenosyltransferase. |
format | Online Article Text |
id | pubmed-7693184 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-76931842020-12-11 Replacement of the Cobalt Center of Vitamin B(12) by Nickel: Nibalamin and Nibyric Acid Prepared from Metal‐Free B(12) Ligands Hydrogenobalamin and Hydrogenobyric Acid Kieninger, Christoph Wurst, Klaus Podewitz, Maren Stanley, Maria Deery, Evelyne Lawrence, Andrew D. Liedl, Klaus R. Warren, Martin J. Kräutler, Bernhard Angew Chem Int Ed Engl Research Articles The (formal) replacement of Co in cobalamin (Cbl) by Ni(II) generates nibalamin (Nibl), a new transition‐metal analogue of vitamin B(12). Described here is Nibl, synthesized by incorporation of a Ni(II) ion into the metal‐free B(12) ligand hydrogenobalamin (Hbl), itself prepared from hydrogenobyric acid (Hby). The related Ni(II) corrin nibyric acid (Niby) was similarly synthesized from Hby, the metal‐free cobyric acid ligand. The solution structures of Hbl, and Niby and Nibl, were characterized by spectroscopic studies. Hbl features two inner protons bound at N2 and N4 of the corrin ligand, as discovered in Hby. X‐ray analysis of Niby shows the structural adaptation of the corrin ligand to Ni(II) ions and the coordination behavior of Ni(II). The diamagnetic Niby and Nibl, and corresponding isoelectronic Co(I) corrins, were deduced to be isostructural. Nibl is a structural mimic of four‐coordinate base‐off Cbls, as verified by its ability to act as a strong inhibitor of bacterial adenosyltransferase. John Wiley and Sons Inc. 2020-09-02 2020-11-02 /pmc/articles/PMC7693184/ /pubmed/32686888 http://dx.doi.org/10.1002/anie.202008407 Text en © 2020 The Authors. Published by Wiley-VCH GmbH This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Articles Kieninger, Christoph Wurst, Klaus Podewitz, Maren Stanley, Maria Deery, Evelyne Lawrence, Andrew D. Liedl, Klaus R. Warren, Martin J. Kräutler, Bernhard Replacement of the Cobalt Center of Vitamin B(12) by Nickel: Nibalamin and Nibyric Acid Prepared from Metal‐Free B(12) Ligands Hydrogenobalamin and Hydrogenobyric Acid |
title | Replacement of the Cobalt Center of Vitamin B(12) by Nickel: Nibalamin and Nibyric Acid Prepared from Metal‐Free B(12) Ligands Hydrogenobalamin and Hydrogenobyric Acid |
title_full | Replacement of the Cobalt Center of Vitamin B(12) by Nickel: Nibalamin and Nibyric Acid Prepared from Metal‐Free B(12) Ligands Hydrogenobalamin and Hydrogenobyric Acid |
title_fullStr | Replacement of the Cobalt Center of Vitamin B(12) by Nickel: Nibalamin and Nibyric Acid Prepared from Metal‐Free B(12) Ligands Hydrogenobalamin and Hydrogenobyric Acid |
title_full_unstemmed | Replacement of the Cobalt Center of Vitamin B(12) by Nickel: Nibalamin and Nibyric Acid Prepared from Metal‐Free B(12) Ligands Hydrogenobalamin and Hydrogenobyric Acid |
title_short | Replacement of the Cobalt Center of Vitamin B(12) by Nickel: Nibalamin and Nibyric Acid Prepared from Metal‐Free B(12) Ligands Hydrogenobalamin and Hydrogenobyric Acid |
title_sort | replacement of the cobalt center of vitamin b(12) by nickel: nibalamin and nibyric acid prepared from metal‐free b(12) ligands hydrogenobalamin and hydrogenobyric acid |
topic | Research Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7693184/ https://www.ncbi.nlm.nih.gov/pubmed/32686888 http://dx.doi.org/10.1002/anie.202008407 |
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