5B1S:
reference: In silico, in vitro, X-ray crystallography, and integrated strategies for discovering spermidine synthase inhibitors for Chagas disease., Yoshino R, Yasuo N, Hagiwara Y, Ishida T, Inaoka DK, Amano Y, Tateishi Y, Ohno K, Namatame I, Niimi T, Orita M, Kita K, Akiyama Y, Sekijima M, Sci Rep. 2017 Jul 27;7(1):6666. doi: 10.1038/s41598-017-06411-9. PMID: 28751689

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