>gi|21264341 spermine synthase [Homo sapiens]
MAAARHSTLDFMLGAKADGETILKGLQSIFQEQGMAESVHTWQDHGYLAT
YTNKNGSFANLRIYPHGLVLLDLQSYDGDAQGKEEIDSILNKVEERMKEL
SQDSTGRVKRLPPIVRGGAIDRYWPTADGRLVEYDIDEVVYDEDSPYQNI
KILHSKQFGNILILSGDVNLAESDLAYTRAIMGSGKEDYTGKDVLILGGG
DGGILCEIVKLKPKMVTMVEIDQMVIDGCKKYMRKTCGDVLDNLKGDCYQ
VLIEDCIPVLKRYAKEGREFDYVINDLTAVPISTSPEEDSTWEFLRLILD
LSMKVLKQDGKYFTQGNCVNLTEALSLYEEQLGRLYCPVEFSKEIVCVPS
YLELWVFYTVWKKAKP