>2NNX_1|Chains A, B, C, D|SUPEROXIDE DISMUTASE [CU-ZN]|Homo sapiens (9606) XATKAVCVLKGDGPVQGIINFEQKESNGPVKVWGSIKGLTEGLHGFRVQEFGDNTAGCTSAGPHFNPLSRKHGGPKDEERHVGDLGNVTADKDGVADVSIEDSVISLSGDHCIIGRTLVVHEKADDLGKGGNEESTKTGNAGSRLACGVIGIAQ