ID 1.7.3.5 DE 3-aci-nitropropanoate oxidase. CA propionate 3-nitronate + O2 + H2O = 3-oxopropanoate + nitrite + H2O2 + CA H(+). 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. //