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  • Title: Functional analysis of a novel lytic polysaccharide monooxygenase from Streptomyces griseus on cellulose and chitin.
    Author: Sato K, Chiba D, Yoshida S, Takahashi M, Totani K, Shida Y, Ogasawara W, Nakagawa YS.
    Journal: Int J Biol Macromol; 2020 Dec 01; 164():2085-2091. PubMed ID: 32763398.
    Abstract:
    Lytic polysaccharide monooxygenases (LPMOs) are enzymes that degrade polysaccharides with an oxidative mechanism and contributed to the efficiency in biomass degradation by glycoside hydrolases (GHs). In this study, the substrate and reaction specificity of SgLPMO10A that was an auxiliary activity family 10 (AA10) enzyme with a carbohydrate binding module family 2 (CBM2) domain from Streptomyces griseus, was analyzed. This enzyme produced oxidized cello-oligosaccharides from cellulose and boosted cellulose degradation by cellulases. Detailed study of the AA10 and CBM2 domains revealed that the binding ability of SgLPMO10A depended on CBM2 and that only the AA10 domain functions more effectively in the presence of a certain amount of substrates.
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