InterPro domain: IPR017747

This entry represents putrescine aminotransferase ( 2.6.1.82 ) as found in Escherichia coli [ 1 ], Erwinia carotovora subsp. atroseptica (Pectobacterium atrosepticum), and closely related species. Putrescine aminotransferase catalyzes the aminotransferase reaction from putrescine to 2-oxoglutarate, leading to glutamate and 4-aminobutanal, which spontaneously cyclizes to form 1-pyrroline. This pyridoxal phosphate enzyme, as characterised in E. coli, can also act on cadaverine and, more weakly, spermidine.

1. A pathway for putrescine catabolism in Escherichia coli. Biochim. Biophys. Acta 880, 242-4