FEBS Letters 1998-11-20

2-Chloro-1,4-dimethoxybenzene as a mediator of lignin peroxidase catalyzed oxidations.

P J Teunissen, J A Field

Index: FEBS Lett. 439(3) , 219-23, (1998)

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Abstract

Poly R478, 4-methoxymandelic acid and oxalic acid were oxidized by lignin peroxidase (LiP) in the presence of the fungal metabolite 2-chloro-1,4-dimethoxybenzene (2Cl-14DMB), whereas no oxidation occurred in the absence of 2Cl-14DMB. These substrates clearly inhibited the consumption of 2Cl-14DMB and the formation of 2-chloro-1,4-benzoquinone from 2Cl-14DMB by LiP. The results suggest that 2Cl-14DMB can replace the function of veratryl alcohol as a redox mediator in lignin peroxidase catalyzed oxidations.