4O9X:
reference: Mechanism of Tc toxin action revealed in molecular detail., Meusch D, Gatsogiannis C, Efremov RG, Lang AE, Hofnagel O, Vetter IR, Aktories K, Raunser S, Nature. 2014 Apr 3;508(7494):61-5. doi: 10.1038/nature13015. Epub 2014 Feb 23. PMID: 24572368

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