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Process of Multicopper Oxidase and Its Subfamily Member SKS in Plant
Zhi-Xian Zhang, Qi-Zhen Chen, Jia-Shu Cao*
Institute of Vegetable Science, Zhejiang University, Hangzhou 310058, China
Abstract: Multicopper oxidase， which includes ascorbate oxidase， laccase， ceruloplasmin and so on， is a very important metal oxidase in plant and relates to kinds of physiological processes with non-substituted value. SKS family， a subfamily member of multicopper oxidase， doesn’t have all the histidine residues which are necessary for copper binding sites. Owing to loss of the active center of multicopper oxidase enzyme， it might play a new function for plant development. This paper reviewes the tpye of copper-binding sites， choice of substrates， the process of evolution of multicopper oxidase and the SKS family in plant.
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