Laccase functional molecules from

The mechanism of laccase has been reported as a two-step reaction. The first step in the oxidation of quinol by laccase was the formation of the semiquinone, with the transfer of an electron from the substrate to the copper in the enzyme. The second step was a nonenzymatic disproportionation reaction between two semiquinone molecules to give one molecule of quinone and one of quinol. The function of copper and electron transfer in the reaction mechanism has been studied by using inorganic ions, electron paramagnetic resonance, and spectrophotometric methods [14]. 

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