SEARCH Articles Figures Tables Aporphine and Berberine Alkaloids Benzylisoquinoline alkaloids berberine Benzylisoquinoline alkaloids berberine bridge enzyme Berberine alkaloids biological activity Berberine alkaloids genera Berberine alkaloids, reactions Berberine alkaloids: synthesis steps Berberine and Related Alkaloids Berberines Protoberberine alkaloids, berberine Protoberberine alkaloids, berberine biosynthesis Protoberberine alkaloids, berberine bridge enzyme