Battenin and lysosomal and endosomal marker co-staining in wild-type and homozygous Cb Cln3Δex7/8 cerebellar precursor cells Batp1 immunostaining of wild-type (CbCln3+/+) and homozygous mutant (CbCln3Δex7/8/Δex7/8) cerebellar precursor cells is shown, with co-staining for lysosomes (Lamp 1), early endosomes (EEA1), and late endosomes (Rab7). Significant overlap of Batp1 signal (red) with EEA1 (green, middle panels) and Rab7 (green, bottom panels) can be seen as yellow when the two channels are merged (Merge). The degree of Batp1 overlap is greatest with Rab7. Only limited overlap between Batp1 (red) and Lamp 1 (green, top panels) can be seen. Batp1 signal in homozygous CbCln3Δex7/8 cells is significantly reduced, but significant overlap with EEA1 and Rab7, and very little Lamp 1 overlap, can be seen as yellow in the respective merged panels. Notably, Lamp 1 and EEA1 localization appear altered, and Rab7 staining was frequently less intense in homozygous CbCln3Δex7/8 cells. Wild-type and homozygous CbCln3Δex7/8 confocal images were captured with identical exposure settings. 60 × magnification.