13 research outputs found
Biochemical and spectroscopic characterization of catechol oxidase from sweet potatoes (Ipomoea batatas) containing a type-3 dicopper center 1
Get PDFTwo catechol oxidases have been isolated from sweet potatoes (Ipomoea batatas) and purified to homogeneity. The two isozymes have been characterized by EXAFS, EPR-, UV/Vis-spectroscopy, isoelectric focusing, and MALDI-MS and have been shown to contain a dinuclear copper center. Both are monomers with a molecular mass of 39 kDa and 40 kDa, respectively. Substrate specificity and NH2-terminal sequences have been determined. EXAFS data for the 39 kDa enzyme reveal a coordination number of four for each Cu in the resting form and suggest a Cu(II)-Cu(II) distance of 2.9 Ã… for the native met form and 3.8 Ã… for the oxy form
Biochemical and spectroscopic characterization of catechol oxidase from sweet potatoes ( Ipomoea batatas
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A combined experimental and theoretical study to explore the catecholase-like activity of a hepta coordinated dinuclear Zn(II) complex
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The conformational state of polyphenol oxidase from field bean (Dolichos lablab) upon SDS and acid-pH activation
No full textIntroducing Supramolecular Interactions into Robust Bis(tetrabromocatecholate) Chelated Manganese(III) Systems and Biomimetic Catalytic Activity
No full textSpatial Autocorrelation of Allozyme Variants among Korean Populations of Calystegia soldanella and C. japonica (Convolvulaceae)
No full textTwo pseudohalide-bridged Cu(II) complexes bearing the anthracene moiety: Synthesis, crystal structures and catecholase-like activity
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