“…Regarding the photoreceptor inner segments, the co-localization of PTPIP51 with the ATP-synthase, a mitochondrial marker, suggests the association of PTPIP51 with this organelle, as previously described in other cell types (Lv et al, 2006;De Vos et al, 2012;Stoica et al, 2014). The variability of the subcellular localization in the rat retina is in agreement with previous studies, which reported different localization for PTPIP51 according to the cell type, but also resulting from the phosphorylation status of PTPIP51 and from the type of the interacting proteins involved (Stenzinger et al, 2009b;Brobeil et al, 2010Brobeil et al, , 2012Bobrich et al, 2013). Furthermore, different isoforms of variable molecular weight have been observed in many tissues, including mouse brain and retina (Stenzinger et al, 2005(Stenzinger et al, , 2009aMaerker et al, 2008;Koch et al, 2009;Brobeil et al, 2010).…”