Soft metal ions can inactivate urease, a Ni(II)-dependent enzyme whose hydrolytic activity has significant im-plications in agro-environmental science and human health. Kinetic and structural studies of the reaction of Canavalia ensiformis urease (JBU) and Sporosarcina pasteurii urease (SPU) with Ag(I) compounds of general formula [Ag(PEt3)X]4 (X =Cl, Br, I), and with the ionic species [Ag(PEt3)2]NO3, revealed the role of the Ag(I) ion and its ligands in modulating the metal-enzyme interaction. The activity of JBU is obliterated by the [Ag(PEt3) X]4 complexes, with IC50 values in the nanomolar range; the efficiency of the inhibition increases in the Cl

Kinetic and structural analysis of the inactivation of urease by mixed-ligand phosphine halide Ag(I) complexes

Luca Mazzei
;
Stefano Ciurli
2021

Abstract

Soft metal ions can inactivate urease, a Ni(II)-dependent enzyme whose hydrolytic activity has significant im-plications in agro-environmental science and human health. Kinetic and structural studies of the reaction of Canavalia ensiformis urease (JBU) and Sporosarcina pasteurii urease (SPU) with Ag(I) compounds of general formula [Ag(PEt3)X]4 (X =Cl, Br, I), and with the ionic species [Ag(PEt3)2]NO3, revealed the role of the Ag(I) ion and its ligands in modulating the metal-enzyme interaction. The activity of JBU is obliterated by the [Ag(PEt3) X]4 complexes, with IC50 values in the nanomolar range; the efficiency of the inhibition increases in the Cl
2021
Luca Mazzei, Damiano Cirri, Michele Cianci, Luigi Messori, Stefano Ciurli
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/836131
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