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Enzyme and Microbial Technology
Article . 2006
License: CC BY NC ND
Data sources: Ciência-UCP
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Enzyme and Microbial Technology
Article . 2006 . Peer-reviewed
License: Elsevier TDM
Data sources: Crossref
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Purification, kinetics and spectral characterisation of a new versatile peroxidase from a Bjerkandera sp. isolate

Authors: Moreira, Patrícia R.; Bouillenne, F.; Vara, E. Almeida; Malcata, F. Xavier; Frère, J. M.; Duarte, J. Cardoso;

Purification, kinetics and spectral characterisation of a new versatile peroxidase from a Bjerkandera sp. isolate

Abstract

From the extracellular fluid of a novel strain of Bjerkandera sp., it was isolated, purified and identified the main enzyme responsible for Remazol Brilliant Blue R dye decolourisation. Such an enzyme is able to oxidise manganese, as well as veratryl alcohol and 2,6-dimethoxyphenol in manganese-independent reactions; hence, it can be included in the new group of versatile peroxidases. The molecular mass of said enzyme is ca. 45 kDa, and the N-terminal amino acid sequence obtained by Edman degradation is VAXPDGVNTA. The enzyme substrate range for oxidation of several phenolic and non-phenolic aromatic compounds was determined and the corresponding Michaelis-Menten kinetic constants calculated. Furthermore, spectrophotometric assays showing the Soret band and allowing observation of band shifts of the enzyme led to the conclusion that Bjerkandera strains may also synthesise at least two different versatile peroxidases, as happens with Pleurotus eryngii.

Country
Portugal
Keywords

White-rot fungus, Enzyme, Oxidoreductase

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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