Compound classification data were obtained from KEGG database.Compound class
Carbohydrates Lipids Nucleic acids Peptides Phytochemical Compounds Vitamins and hormonesActivity
Antibiotics Enzyme Ligands 6. Ligases 6.3 Forming carbon-nitrogen bonds 6.3.1 Acid--ammonia (or amine) ligases (amide synthases) 6.3.1.2 glutamate-ammonia ligase 6.3.1.8 glutathionylspermidine synthase Enzyme Substrates GPCR Ligands Ion Channel Ligands Nuclear Receptor Ligands Transporter Substrates