FIG. 8.

Effect of oxalate on oxidation of o-dianisidine by rMnPs. o-Dianisidine (0.1 mM) was incubated with 0.007 U of Cs-rMnp1 (A) or 0.02 U of rH4 (B) with or without oxalate either in the presence or in the absence of Mn(II). Symbols: □, oxalate absent and Mn(II) absent; ○, oxalate present and Mn(II) absent; ■ oxalate absent and Mn(II) present; ●, oxalate present and Mn(II) present. Each point and error bar indicate the average and standard deviation based on three experiments. For points without error bars the standard deviation was less than 10%.