ID 1.7.3.5 DE 3-aci-nitropropanoate oxidase. CA H2O + O2 + propionate 3-nitronate = 3-oxopropanoate + H(+) + H2O2 + CA nitrite. CC -!- The primary products of the enzymatic reaction are probably the CC nitropropanoate free radical and superoxide. CC -!- Also acts, more slowly, on 4-aci-nitrobutanoate. //