>1IY9_1|Chains A, B, C, D|Spermidine synthase|Bacillus subtilis (1423) SELWYTEKQTKNFGITMKVNKTLHTEQTEFQHLEMVETEEFGNMLFLDGMVMTSEKDEFVYHEMVAHVPLFTHPNPEHVLVVGGGDGGVIREILKHPSVKKATLVDIDGKVIEYSKKFLPSIAGKLDDPRVDVQVDDGFMHIAKSENQYDVIMVDSTEPVGPAVNLFTKGFYAGIAKALKEDGIFVAQTDNPWFTPELITNVQRDVKEIFPITKLYTANIPTYPSGLWTFTIGSKKYDPLAVEDSRFFDIETKYYTKDIHKAAFVLPKFVSDLIK