Function
Multicopper oxidase able to oxidize a wide variety of polyphenols and related compounds in vitro. Displays substrate preference as follows: syringaldazine > 2,6-dimethoxyphenol > veratryl alcohol > guaiacol > tetramethylbenzidine > 4-methoxybenzyl alcohol > 2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) (ABTS) >> phenol red > 1-hydroxybenzotriazole. Cannot use 3,4-dimetoxybenzyl alcohol and violuric acid as substrates. As this enzyme is derived from a rumen microbial community, it may have a role in the digestion of complex plant materials such as ryegrass lignin.