5A40:
reference: Crystal structures of a double-barrelled fluoride ion channel., Stockbridge RB, Kolmakova-Partensky L, Shane T, Koide A, Koide S, Miller C, Newstead S, Nature. 2015 Sep 24;525(7570):548-51. doi: 10.1038/nature14981. Epub 2015 Sep 7. PMID: 26344196

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