Journal: Human Molecular Genetics
Article Title: PARK9-associated ATP13A2 localizes to intracellular acidic vesicles and regulates cation homeostasis and neuronal integrity
doi: 10.1093/hmg/ddr606
Figure Lengend Snippet: Localization of exogenous ATP13A2 to intracellular acidic vesicles in cortical neurons. (A) Confocal fluorescence microscopy reveals the co-localization of exogenous V5-tagged human ATP13A2 with GFP-LC3 (autophagosomes), RFP-Rab5A (early endosomes), GFP-Rab7A (late endosomes) and LAMP1-RFP (lysosomes) in neuronal soma and processes. Exogenous GFP-tagged mouse ATP13A2 is specifically labeled by the ATP13A2 antibody (LMNR1). (B) ATP13A2-V5 localizes to punctate structures located upon βIII-tubulin-positive neuronal processes, whereas ATP13A2-GFP fails to co-localize with endogenous synaptophysin-1, a marker of synaptic vesicles. Cytofluorograms and correlation coefficients (Rcoloc) indicate the extent of co-localization between exogenous ATP13A2 and each marker. Confocal images are representative of at least two independent cultures. Scale bar: 10 µm.
Article Snippet: Expression plasmids containing human GFP-LC3B [plasmid no. 11546, ( 31 )], human RFP-Rab5A [plasmid no. 14437, ( 32 )], human GFP-Rab7A [plasmid no. 12605, ( 33 )] and rat LAMP1-RFP [plasmid no. 1817, ( 34 )] were obtained from Addgene.
Techniques: Fluorescence, Microscopy, Labeling, Marker