BBE-like enzymes serve as a catalyzer for a wide range of reactions. All the way from two-electron oxidations as observed in (At)BBE-like 15 to four-electron oxidations as seen in Dbv29.
BBE-like enzymes are involved in the synthesis of plenty of isoquinoline alkaloids such as the conversion of (S)-reticuline to (S)-scoulerine or by guiding (S)-reticuline to protoberberine, protopine, benzophenanthridine, phthalide isoquinoline or rhoeadine metabolic pathways.
Research on this matter is rare since it is very complex and had never been looked into until recently. New studies reveal that BBE-like enzymes are involved in the biological synthesis of the alkaloids intermediates communesin as well as chanoclavine (I). The mechanism through which reactions are catalyzed by these BBE-like enzymes has not been found yet, but the resulting conformation of the products suggests that a similar coupling of substrate oxidation and ring formation occurs in these processes.