6AZU:
reference: Immune-modulating enzyme indoleamine 2,3-dioxygenase is effectively inhibited by targeting its apo-form., Nelp MT, Kates PA, Hunt JT, Newitt JA, Balog A, Maley D, Zhu X, Abell L, Allentoff A, Borzilleri R, Lewis HA, Lin Z, Seitz SP, Yan C, Groves JT, Proc Natl Acad Sci U S A. 2018 Mar 12. pii: 1719190115. doi:, 10.1073/pnas.1719190115. PMID: 29531094

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