1LJT:
reference: The tautomerase active site of macrophage migration inhibitory factor is a potential target for discovery of novel anti-inflammatory agents., Lubetsky JB, Dios A, Han J, Aljabari B, Ruzsicska B, Mitchell R, Lolis E, Al-Abed Y, J Biol Chem 2002 Jul 12;277(28):24976-82. Epub 2002 May 7. PMID: 11997397

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