Expanding the laccase-toolbox: a laccase from Corynebacterium glutamicum with phenol coupling and cuprous oxidase activity.

•New laccase CgL1 from Corynebacterium glutamicum was expressed in E. coli.•CgL1 is stable in the presence of organic solvents and at elevated temperatures.•CgL1 is active at alkaline pH-values.•CC / C-O coupling of phenolic acids as well as oxidation of Cu+ with CgL1 was demonstrated.•Dehydrodimer of sinapic acid is the main product of sinapic acid conversion.