5EPD:
reference: The crystal structure of XdpB, the bacterial old yellow enzyme, in an FMN-free form., Zahradnik J, Kolenko P, Palyzova A, Cerny J, Kolarova L, Kyslikova E, Maresova H, Grulich M, Nunvar J, Sulc M, Kyslik P, Schneider B, PLoS One. 2018 Apr 9;13(4):e0195299. doi: 10.1371/journal.pone.0195299., eCollection 2018. PMID: 29630677

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