6DV3:
reference: Cryo-EM analysis of the T3S injectisome reveals the structure of the needle and open secretin., Hu J, Worrall LJ, Hong C, Vuckovic M, Atkinson CE, Caveney N, Yu Z, Strynadka NCJ, Nat Commun. 2018 Sep 21;9(1):3840. doi: 10.1038/s41467-018-06298-8. PMID: 30242280

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