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EC Number
Crystallization
Reference
1.1 A resolution room-temperature X-ray structure and 2.1 A resolution neutron structure, show a putative dioxygen species equatorially bound to the active site copper with elongated density for the dioxygen, most consistent with a Cu(II)-bound peroxide
1.1 A resolution, room-temperature X-ray structure and a 2.1 A resolution neutron structure show a putative dioxygen species equatorially bound to the active site copper. Both structures show an elongated density for the dioxygen, consistent with a Cu(II)-bound peroxide. The coordination environment is consistent with Cu(II). The N-terminal amino group, involved in copper coordination, is present as a mixed neutral and deprotonated form
1.55 A resolution structure of N-terminal LPMO10A module reveals deletions of interacting loops that protrude from the core beta-sandwich scaffold in larger LPMO10s
; crystal structure in the Cu(II)-bound form and photoreduction of the crystalline protein in the x-ray beam, leading to conversion from the initial Cu(II)-oxidized form with two coordinated water molecules, which adopts a trigonal bipyramidal geometry, to a reduced Cu(I) form in a T-shaped geometry with no coordinated water molecules
analysis of the copper active site
calculation of solution structure. Ca2+, Mg2+, Fe3+, Co2+, Zn2+, or Cu2+ ions show binding to an interaction site located between His28 and His114
comparative analysis of sequences, solved structures, and homology models from AA9 and AA10 LPMO families.The two LPMO families are highly conserved, structurally they have minimal sequence similarity outside the active site residues
crystallization at pH 3.5. Structure shows shows significant disorder of the active site in the absence of substrate ligand
in presence of Zn2+, to 1.55 A resolution, and in presence of Cu2+, to 1.4 AS resolution
molecular dynamics interactions between the LPMO and three different surface topologies of crystalline chitin. Most enzyme-substrate interactions involve the polysaccharide chain that is to be cleaved. Enzyme displays a constrained active site geometry as well as a tunnel connecting the bulk solvent to the copper site, through which only small molecules such as H2O, O2, and H2O2 can diffuse. Rearrangement of Cu-coordinating water molecules is necessary when binding the substrate and also provide a rationale for the experimentally observed C1 oxidative regiospecificity
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