MOMP from Campylobacter jejuni is a trimer of 18-stranded β-barrel monomers with a Ca(2+) ion bound at the constriction zone. (Journal of Molecular Biology, 2016)

(untitled) - Ferrara, L; Wallat, G; Moynié, L; Dhanasekar, N; Aliouane, S; Acosta-Gutiérrez, S; Pagès, J; Bolla, J; Winterhalter, M; Ceccarelli, M; Naismith, J