K
Klaudia Büldt-Karentzopoulos
Researcher at University of Münster
Publications - 8
Citations - 513
Klaudia Büldt-Karentzopoulos is an academic researcher from University of Münster. The author has contributed to research in topics: Catechol oxidase & Tyrosinase. The author has an hindex of 7, co-authored 8 publications receiving 471 citations. Previous affiliations of Klaudia Büldt-Karentzopoulos include University of Michigan.
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Biochemical and spectroscopic characterization of catechol oxidase from sweet potatoes (Ipomoea batatas) containing a type-3 dicopper center
TL;DR: In this article, two catechol oxidases have been isolated from sweet potatoes (Ipomoea batatas) and purified to homogeneity, and 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.
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Purification and spectroscopic studies on catechol oxidases from Lycopus europaeus and Populus nigra: evidence for a dinuclear copper center of type 3 and spectroscopic similarities to tyrosinase and hemocyanin.
Annette Rompel,Helmut Fischer,Dirk Meiwes,Klaudia Büldt-Karentzopoulos,Renée Dillinger,Felix Tuczek,Herbert Witzel,Bernt Krebs +7 more
TL;DR: The intense resonance Raman peak at 277 cm–1, belonging to a Cu-N (axial His) stretching mode, suggests that catechol oxidase has six terminal His ligands, as known for molluscan and arthropodan hemocyanin.
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Dioxygenase-Mediated Quenching of Quinolone-Dependent Quorum Sensing in Pseudomonas aeruginosa
Christian Pustelny,Alexander Albers,Klaudia Büldt-Karentzopoulos,Katja Parschat,Siri Ram Chhabra,Miguel Cámara,Paul Williams,Susanne Fetzner +7 more
TL;DR: Data indicate that enzyme-mediated PQS inactivation has potential as an antivirulence strategy against P. aeruginosa.
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Substrate specificity of catechol oxidase from Lycopus europaeus and characterization of the bioproducts of enzymic caffeic acid oxidation.
Annette Rompel,Helmut Fischer,Dirk Meiwes,Klaudia Büldt-Karentzopoulos,Annette Magrini,Christoph Eicken,Carsten Gerdemann,Bernt Krebs +7 more
TL;DR: The substrate specificity of catechol oxidase from Lycopus europaeus towards phenols is examined and a reaction mechanism for the formation of (1, 4 and 5) is discussed.
Journal ArticleDOI
Reevaluation of the kinetics of polynuclear mimics for manganese catalases.
Sandra Signorella,Annette Rompel,Klaudia Büldt-Karentzopoulos,Bernt Krebs,Vincent L. Pecoraro,Jean-Pierre Tuchagues +5 more
TL;DR: Reevaluation of the kinetic parameters for three families of manganese complexes containing either a Mn2(mu-OPh)22+ core and different substituted tripodal ligands or complexes of methyl and ethyl salicylimidate reveals that the originally reported values were overestimated by a factor of approximately 1000.