The PAMDB is an expertly curated database containing extensive metabolomic data and metabolic pathway diagrams about Pseudomonas aeruginosa (reference strain PAO1). PAMDB currently contains more than 4370 small molecules and 5695 proteins, including 1267 richly annotated enzymes and transporters. It also has 938 metabolic pathways. A total of 7790 reactions are also contained in the database.