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Interaction of the vanadyl (IV) cation with carnosine and related ligands
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The interaction of the vanadyl (IV) (VO2+) cation with carnosine (the dipeptide β-alanyl-histidine) has been investigated by electron absorption spectroscopy at high ligand-to-metal ratios and at different pH values and results show that in the range 6.0–8.5, the cation interacts with the imidazole group of four different Carnival molecules and points to the presence of an axially coordinated waterAbstract:
The interaction of the vanadyl (IV) (VO2+) cation with carnosine (the dipeptide beta-alanyl-histidine) has been investigated by electron absorption spectroscopy at high ligand-to-metal ratios and at different pH values. The results show that in the range 6.0-8.5, the cation interacts with the imidazole group of four different carnosine molecules and points to the presence of an axially coordinated water molecule. These suppositions were confirmed by the behavior of the VO2+/imidazole system, which was investigated under similar experimental conditions, and supported by previous ENDOR (electron-nuclear double resonance) results. The study was complemented with additional measurements using the glycylglycine, glycylglycine/imidazole, and histidine systems as ligands.read more
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Review: Nasal Toxicity, Carcinogenicity, and Olfactory Uptake of Metals
TL;DR: In the olfactory cortex, metal-binding molecules such as carnosine (β-alanyl-L-histidine) may be involved in metal translocation as mentioned in this paper.
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Oxovanadium(IV) and oxovanadium(V) complexes relevant to biological systems.
TL;DR: Different aspects of the coordination chemistry of oxovanadium(IV), relevant to the bioinorganic chemistry of vanadium, are presented and their structural, spectroscopic and magnetic properties are briefly discussed.
Journal ArticleDOI
Review: spectroscopic studies of oxovanadium coordination compounds
TL;DR: In this article, a review of the studies of oxovanadium(IV) and oxovadium(V) complexes relevant for the bioinorganic chemistry of vanadium is presented, where the potentialities and possibilities of the spectroscopic methodologies are illustrated and discussed.
Journal ArticleDOI
Oxovanadium(IV) complexes of halogenated oxines
TL;DR: In this paper, the infrared spectra of VO2+ complexes of 8-hydroxyquinoline (oxine) and of some of its mono-and dihalogenated derivatives have been prepared.
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Oxovanadium(iv) complexes of captopril
TL;DR: In this article, the interaction between the VO2+ cation and captopril was investigated in solution and in the solid state, and it was shown that at pH = 6.5 the interaction occurs through the COO− and C=O groups.
References
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Journal ArticleDOI
Biological chemistry of the elements: J.J.R. Frausto de Silva and R.J.P. Williams Oxford University Press, UK, 1991, pp. 552, ISBN 0 19 855598 9, £60.00
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Interactions of histidine and other imidazole derivatives with transition metal ions in chemical and biological systems
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The Bioinorganic Chemistry of Vanadium
TL;DR: Despite its importance as a “biometal” both in primitive, prokaryotic organisms and in the highly organized ascidians, the bioinorganic chemistry of vanadium is still in its infancy.
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