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 Rhodopsin family: peptide receptors Angiotensin Somatostatin SSTR2; somatostatin receptor 2 SSTR3; somatostatin receptor 3 SSTR5; somatostatin receptor 5 Ion Channel Ligands Nuclear Receptor Ligands Transporter Substrates