A novel combination of prosthetic groups in a fungal laccase; PQQ and two copper atoms.
FEBS Lett
; 267(1): 6-8, 1990 Jul 02.
Article
em En
| MEDLINE
| ID: mdl-2163900
ABSTRACT
Extracellular laccase (benzenediol oxygen oxidoreductase EC 1.10.3.2) from the lignin-degrading fungus, Phlebia radiata, was shown to contain a novel combination of electron carriers as its prosthetic groups. In addition to two copper atoms per enzyme molecule, one molecule of PQQ was included as a cofactor. The EPR spectrum exhibits features of type 1 and type 2 copper atoms. In the enzymatic reaction 4 molecules of lignin model compound, coniferyl alcohol, are oxidized per molecule of oxygen reduced to water. During the reaction coniferyl alcohol is transformed to dilignols.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Oxirredutases
/
Quinolonas
/
Cobre
/
Fungos
Idioma:
En
Revista:
FEBS Lett
Ano de publicação:
1990
Tipo de documento:
Article
País de afiliação:
Finlândia