LAMP1 and infection: Moreover, in contrast to the Ba-parental strain, which segregated at 24 h post-infection within the calnexin-positive endoplasmic reticulum, the BaΔwadC mutant-containing vacuoles colocalized with the lysosomal LAMP-1 marker, indicating its failure to reach the endoplasmic reticulum replication niche (Figure 3, lower panel).