LAP3 and infection: Loss of the Pgp3 M23 peptidase resulted in a curved rod morphology (Min et al., 2020) with a decrease in angularity that wasn’t as pronounced as that of ∆pgp4 and ∆pgp6 (J. Vermeulen, T. Ibitsam and E. Frirdich, unpublished results) and a marked defect in invasion and intracellular survival in Caco2 epithelial cells (after 3 h infection followed by 3 h gentamicin treatment to kill extracellular bacteria) in comparison to wild type (Min et al., 2020).