5VGL:
reference: Enzyme That Makes You Cry-Crystal Structure of Lachrymatory Factor Synthase from Allium cepa., Silvaroli JA, Pleshinger MJ, Banerjee S, Kiser PD, Golczak M, ACS Chem Biol. 2017 Jul 26. doi: 10.1021/acschembio.7b00336. PMID: 28708375

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