5XGL:
reference: The crystal structure of Ac-AChBP in complex with alpha-conotoxin LvIA reveals the mechanism of its selectivity towards different nAChR subtypes., Xu M, Zhu X, Yu J, Yu J, Luo S, Wang X, Protein Cell. 2017 Sep;8(9):675-685. doi: 10.1007/s13238-017-0426-2. Epub 2017, Jun 5. PMID: 28585176

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