1INL:
reference: The crystal structure of spermidine synthase with a multisubstrate adduct inhibitor., Korolev S, Ikeguchi Y, Skarina T, Beasley S, Arrowsmith C, Edwards A, Joachimiak A, Pegg AE, Savchenko A, Nat Struct Biol 2002 Jan;9(1):27-31. PMID: 11731804

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