GO:0016491	F	0.98	oxidoreductase activity
GO:0004497	F	0.95	monooxygenase activity
GO:0016705	F	0.69	oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen
GO:0008395	F	0.43	steroid hydroxylase activity
GO:0016709	F	0.42	oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen, NAD(P)H as one donor, and incorporation of one atom of oxygen
GO:0020037	F	0.34	heme binding
GO:0005506	F	0.29	iron ion binding
GO:0016712	F	0.26	oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen, reduced flavin or flavoprotein as one donor, and incorporation of one atom of oxygen
GO:0070330	F	0.25	aromatase activity
GO:0019825	F	0.17	oxygen binding
GO:0008392	F	0.12	arachidonic acid epoxygenase activity
