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Decavanadate, decaniobate, tungstate and molybdate interactions with sarcoplasm...
Fraqueza, Gil; Carvalho, Luís A. E. Batista de; Marques, M. Paula M.; Maia, Luisa; Ohlin, C. André; Casey, William H.; Aureliano, M.Recently we demonstrated that the decavanadate (V10) ion is a stronger Ca2+-ATPase inhibitor than other oxometalates, such as the isoelectronic and isostructural decaniobate ion, and the tungstate and molybdate monomer ions, and that it binds to this protein with a 1 : 1 stoichiometry. The V10 interaction is not affected by any of the protein conformations that occur during the process of calcium translocation ...
Nitrite reduction by xanthine oxidase family enzymes: a new class of nitrite re...
Maia, Luisa B.; Moura, José J. G.J Biol Inorg Chem (2011) 16:443–460 DOI 10.1007/s00775-010-0741-z ; Mammalian xanthine oxidase (XO) and Desulfovibrio gigas aldehyde oxidoreductase (AOR) are members of the XO family of mononuclear molybdoenzymes that catalyse the oxidative hydroxylation of a wide range of aldehydes and heterocyclic compounds. Much less known is the XO ability to catalyse the nitrite reduction to nitric oxide radical (NO). To ...
NADH oxidase activity of rat and human liver xanthine oxidoreductase: potential...
Maia, Luisa; Duarte, Rui O.; Ponces-Freire, Ana; Moura, José J. G.; Mira, LurdesJ Biol Inorg Chem (2007) 12:777–787 DOI 10.1007/s00775-007-0229-7 ; To characterise the NADH oxidase activity of both xanthine dehydrogenase (XD) and xanthine oxidase (XO) forms of rat liver xanthine oxidoreductase (XOR) and to evaluate the potential role of this mammalian enzyme as an O2*- source, kinetics and electron paramagnetic resonance (EPR) spectroscopic studies were performed. A steady-state kinetics ...
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