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  • Title: Suicide inactivation of peroxidase from Chamaerops excelsa palm tree leaves.
    Author: Cuadrado NH, Zhadan GG, Roig MG, Shnyrov VL.
    Journal: Int J Biol Macromol; 2011 Dec 01; 49(5):1078-82. PubMed ID: 21925205.
    Abstract:
    The concentration and time-dependences and the mechanism of the inactivation of Chamaerops excelsa peroxidase (CEP) by hydrogen peroxide were studied kinetically with four co-substrates (2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), guaiacol, o-dianisidine and o-phenylenediamine). The turnover number (r) of H(2)O(2) required to complete the inactivation of the enzyme varied for the different substrates, the enzyme most resistant to inactivation (r=4844) with ABTS being the most useful substrate for biotechnological applications, opening a new avenue of enquiry with this peroxidase.
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