(A) Representative confocal imaging of localization of Lamp1-mcherry and LysoTracker Green in wild type (w1118), NimB4 sk2 and draper△5 macrophages (live imaging). The arrows indicate the colocalization (w1118) or the clustering (NimB4sk2 and draper△5) of Lamp1-mcherry and LysoTracker Green signals. Scale bar: 10 μm. (B) Quantification of the colocalization of Lamp1-mcherry with LysoTracker Green, as measured by Pearson's correlation coefficient between the two signals. Values from at least five independent experiments are represented as mean ± SD (* P<0.05 by ANOVA test followed by post hoc Dunnett's multiple comparison tests). 