hydroxylates aloesaponarin II, a molecule that is produced by the actinorhodin minimal polyketide synthase in combination with the actinorhodin ketoreductase, aromatase and cyclase; also capable of accepting additional polyketide core structures that contain a 5-hydroxy-1,4-naphthoquinone moiety as substrates which makes it an interesting tailoring enzyme for the modification of polyketide structures
