SKS1 (SKU5 SIMILAR 1); copper ion binding. Identical to Monocopper oxidase-like protein SKS1 precursor (SKS1) [Arabidopsis Thaliana] (GB:Q8VXX5;GB:Q9SB39); similar to SKU5 (skewed 5), copper ion binding [Arabidopsis thaliana] (TAIR:AT4G12420.1); 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 cultivar-