RESEARCH FOR METAL-BINDING ABILITY AND SELECTIVITY OF VANADIUM-BINIDNG PROTEIN FROM ASCIDIANS

3.Oxidation of vanadium-binding protein by vanadium(III) : In order to examine whether the dithio bond can be reduced by vanadium(III), we examined the reaction between vanadium(III) and cystine or glutathione (oxidiazed form) as a model compound of vanadium-binding protein. We found that the dithio bond in the model compounds was cleaved by vanadium(III). The reduction of vanadium-binding protein by vanadium(III) is now under investigation.