EC 1. Oxidoreductases

EC 1.13 Acting on single donors with incorporation of molecular oxygen (oxygenases)

This subclass contains oxygenases that incorporate oxygen into the substrate. They differ from those in EC 1.14 in that a second hydrogen donor is not required. Sub-subclasses are based on the number of atoms of oxygen that are incorporated: two atoms of oxygen (EC 1.13.11), one atom of oxygen (EC 1.13.12), or other cases (EC 1.13.99). This classification replaces an earlier version. Common names in this subclass are usually of the form 'monooxygenase' and 'dioxygenase'.

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