SKU5 (skewed 5); copper ion binding. Identical to Putative monocopper oxidase precursor (SKU5) [Arabidopsis Thaliana] (GB:Q9SU40;GB:Q0WM56;GB:Q8H7C9); similar to SKS1 (SKU5 SIMILAR 1), copper ion binding [Arabidopsis thaliana] (TAIR:AT4G25240.1); similar to SKS2 (SKU5 SIMILAR 2), copper ion binding [Arabidopsis thaliana] (TAIR:AT5G51480.1); similar to SKS3 (SKU5 Similar 3), copper ion binding [Arabidopsis thaliana] (TAIR:AT5G48450.1); similar to unnamed protein product [Vitis vinifera] (GB:CAO70326.1); similar to unnamed protein product [Vitis vinifera] (GB:CAO42682.1); similar to hypothetical protein OsI_033112 [Oryza sativa (indica cultiva