Therefore, P. gingivalis ClpP-infected cells were stained with the lysosome specific fluorescent dye (LysoTracker-Red) and post-labeled with the anti- P. gingivalis antibody coupled with fluorescent conjugated secondary antibody (green) to determine potential subcellular localization of the mutant cells with lysosomes at 24 h infection. The gene discussed is CLPP; the disease is infection.