>1XSO_1|Chains A, B|COPPER,ZINC SUPEROXIDE DISMUTASE|Xenopus laevis (8355) VKAVCVLAGSGDVKGVVHFEQQDEGAVSVEGKIEGLTDGLHGFHIHVFGDNTNGCMSAGSHFNPENKNHGAPGDTDRHVGDLGNVTAEGGVAQFKITDSLISLKGPNSIIGRTAVVHEKADDLGKGGNDESLKTGNAGGRLACGVIGYSP