The oxygen incorporated need not be derived from O. The systematic name of this enzyme class is 2-nitropropane:oxygen 2-oxidoreductase.

The oxygen incorporated need not be derived from O2 with 2-oxoglutarate as one donor, and incorporation of one atom o oxygen into each donor.

Furthermore, seven of the amino acids which are incorporated into proteins, have oxygen incorporated into their side-chains, as well.

The oxygen incorporated need not be derived from O with oxidation of a pair of donors resulting in the formation of HO.

The oxygen incorporated need not be derived from O. It employs one cofactor, iron.

The oxygen incorporated need not be derived from O with incorporation of one atom of oxygen (internal monooxygenases o internal mixed-function oxidases).

The oxygen incorporated need not be derived from O miscellaneous.

The oxygen incorporated need not be derived from O2 with oxidation of a pair of donors resulting in the reduction of O to two molecules of water.

The oxygen incorporated need not be derived from O2 with 2-oxoglutarate as one donor, and the other dehydrogenated.

The oxygen incorporated need not be derived from O2 with reduced pteridine as one donor, and incorporation of one ato of oxygen into the other donor.