Compound classification data were obtained from KEGG database.Compound class
Carbohydrates Lipids Nucleic acids Peptides Phytochemical Compounds Vitamins and hormonesActivity
Antibiotics Enzyme Ligands Enzyme Substrates GPCR Ligands Metabotropic glutamate family Extracellular calcium-sensing GABA-B Glutamate (metabotropic) Orphan GPCR6 Ion Channel Ligands Nuclear Receptor Ligands Transporter Substrates