4CV7:
reference: Structure of Rhodococcus equi virulence-associated protein B (VapB) reveals an eight-stranded antiparallel beta-barrel consisting of two Greek-key motifs., Geerds C, Wohlmann J, Haas A, Niemann HH, Acta Crystallogr F Struct Biol Commun. 2014 Jul;70(Pt 7):866-71. doi:, 10.1107/S2053230X14009911. Epub 2014 Jun 18. PMID: 25005079

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