- Alkaloid Biosynthesis I
- Alkaloid Biosynthesis II
- Diterpenoid Biosynthesis
- Indole and Ipecac alkaloid biosynthesis
- Tryptophan metabolism (see: L-Tryptophan decarboxylase)
- Phenylalanine, tyrosine and tryptophan biosynthesis
- Nicotinate and Nicotinamide metabolism
- Terpenoid Biosynthesis (see: elymoclavine)
- Steroid Hormone Metabolism
- Androgen and estrogen metabolism
- N,N-Dimethyltryptamine
- 5-Methoxy-N,N-Dimethyltryptamine
- Tryptamine N-Methyl Transferase Enzyme
- Indolethylamine N-Methyl Transferase (INMT)
- Tyrosine Metabolism
- Phenylalanine Metabolism
- Glutamate Metabolism (see: gamma-aminobutyric acid)
- Glycine, serine and threonine metabolism
- Amino Acid Metabolism