4K1H:
reference: Induced opening of influenza virus neuraminidase N2 150-loop suggests an important role in inhibitor binding., Wu Y, Qin G, Gao F, Liu Y, Vavricka CJ, Qi J, Jiang H, Yu K, Gao GF, Sci Rep. 2013;3:1551. doi: 10.1038/srep01551. PMID: 23531861

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