5O2Y:
reference: Structure of the calcium-dependent type 2 secretion pseudopilus., Lopez-Castilla A, Thomassin JL, Bardiaux B, Zheng W, Nivaskumar M, Yu X, Nilges M, Egelman EH, Izadi-Pruneyre N, Francetic O, Nat Microbiol. 2017 Oct 9. doi: 10.1038/s41564-017-0041-2. PMID: 28993624

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