ID 1.10.3.6 DE Rifamycin-B oxidase. CA Rifamycin B + O(2) = rifamycin O + H(2)O(2). CC -!- Also acts on benzene-1,4-diol and, more slowly, on some other CC p-quinols. CC -!- Not identical with EC 1.10.3.1, EC 1.10.3.2, EC 1.10.3.4 or CC EC 1.10.3.5. //