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 Secretin family Vasoactive intestinal polypeptide VIPR2; vasoactive intestinal peptide receptor 2 Ion Channel Ligands Nuclear Receptor Ligands Transporter Substrates