Complete structures of the YenTc holotoxin prepore and pore reveal the evolutionary basis for chitinase incorporation into ABC toxins. - Low YS; Roche SG; Aleksandrova NA; Foley G; Low JK; Box JK; Croll TI; Chassagnon IR; Lott JS; Deplazes E; Bodén M; Hurst MR; et al. (Nature communications, 2025)