BRENDA: BR43902
KEGG: R01153
MetaCyc: PUTRESCINE-N-METHYLTRANSFERASE-RXN
SABIO-RK: 1394
BRENDA: BS394920
KEGG: R05334
MetaCyc: RXN-8244
SABIO-RK: 4942
KEGG: R04027
BRENDA: BS319754