This entry represents the region found N-terminal to the neuraminidase domain in the pore forming ABC toxins [1].

1: Cryo-EM structures of the pore-forming A subunit from the Yersinia entomophaga ABC toxin. Piper SJ, Brillault L, Rothnagel R, Croll TI, Box JK, Chassagnon I, Scherer S, Goldie KN, Jones SA, Schepers F, Hartley-Tassell L, Ve T, Busby JN, Dalziel JE, Lott JS, Hankamer B, Stahlberg H, Hurst MRH, Landsberg MJ; Nat Commun. 2019;10:1952. PMID:31028251