2B98:
reference: Crystal structure of an archaeal pentameric riboflavin synthase in complex with a substrate analog inhibitor: stereochemical implications., Ramsperger A, Augustin M, Schott AK, Gerhardt S, Krojer T, Eisenreich W, Illarionov B, Cushman M, Bacher A, Huber R, Fischer M, J Biol Chem. 2006 Jan 13;281(2):1224-32. Epub 2005 Nov 4. PMID: 16272154

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