| Citrate cycle (TCA cycle) |
| Valine, leucine and isoleucine degradation |
| Phenylalanine metabolism |
| Benzoate degradation |
| Toluene degradation |
| Naphthalene degradation |
| Glyoxylate and dicarboxylate metabolism |
| Propanoate metabolism |
| Carbon fixation pathways in prokaryotes |
| Biosynthesis of plant secondary metabolites |
| Biosynthesis of phenylpropanoids |
| Biosynthesis of alkaloids derived from shikimate pathway |
| Biosynthesis of alkaloids derived from ornithine, lysine and nicotinic acid |
| Biosynthesis of alkaloids derived from histidine and purine |
| Biosynthesis of alkaloids derived from terpenoid and polyketide |
| Biosynthesis of plant hormones |
| Metabolic pathways |
| Biosynthesis of secondary metabolites |
| Microbial metabolism in diverse environments |
| Degradation of aromatic compounds |