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. 2013 Dec 20;3:3566. doi: 10.1038/srep03566

Figure 2.

Figure 2

(a) The XRD structure of RibU (PDB code: 3P5N11) with missing electron density of I142-L152 (L5′). (b) The structure of riboflavin, composed of a ribityl side chain and an aromatic isoallloxazine ring.