Background: The recently discovered lytic polysaccharide monooxygenases (LPMOs) are important in enzymatic conversion of lignocellulosic biomass.Results: We describe structural and functional studies of NcLPMO9C, which cleaves both cellulose and certain hemicelluloses.Conclusion: NcLPMO9C has structural and functional features that correlate with the enzyme's catalytic capabilities.Significance: This study shows how LPMO active sites are tailored to varying functionalities and adds to a growing LPMO knowledge base.
