LAC16 (laccase 16); copper ion binding / oxidoreductase. Identical to Laccase-16 precursor (LAC16) [Arabidopsis Thaliana] (GB:Q1PDH6;GB:A0MFQ5;GB:Q3E893); similar to IRX12/LAC4 (laccase 4), copper ion binding / oxidoreductase [Arabidopsis thaliana] (TAIR:AT2G38080.1); similar to LAC10 (laccase 10), copper ion binding / oxidoreductase [Arabidopsis thaliana] (TAIR:AT5G01190.1); similar to LAC11 (laccase 11), copper ion binding / oxidoreductase [Arabidopsis thaliana] (TAIR:AT5G03260.1); similar to diphenol oxidase (GB:AAC49536.1); similar to Laccase-22 precursor (Benzenediol:oxygen oxidoreductase 22) (Urishiol oxidase 22) (Diphenol oxidase 22)