2CEY: Apo Structure Of Siap
reference: Conservation of structure and mechanism in primary and secondary transporters exemplified by SiaP, a sialic acid binding virulence factor from Haemophilus influenzae., Muller A, Severi E, Mulligan C, Watts AG, Kelly DJ, Wilson KS, Wilkinson AJ, Thomas GH, J Biol Chem. 2006 Aug 4;281(31):22212-22. Epub 2006 May 15. PMID: 16702222

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