4P1X:
reference: Molecular basis of transmembrane beta-barrel formation of staphylococcal pore-forming toxins., Yamashita D, Sugawara T, Takeshita M, Kaneko J, Kamio Y, Tanaka I, Tanaka Y, Yao M, Nat Commun. 2014 Sep 29;5:4897. doi: 10.1038/ncomms5897. PMID: 25263813

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