Fig. 8. The mitochondria-associated protein, Rab32, colocolized with Tom20-HA and undergoes a protein–protein interaction with Dosmit.
a Confocal microscopy images of YFP-Rab32 (green) localized around mitochondria (red) and b colocalized with Dosmit (red) in fly muscle tissue. Scale bars: 10 μm. c Tom20-HA (red) ectopically expressed and colocalized with YFP-Rab32 (green). d Western blotting of flight-muscle tissue homogenates showed expression of the YFP-Rab32 protein in the mitochondrial fraction only (M: mitochondrial fraction; C: cytosolic fraction; Tubulin: cytosolic control; Porin: mitochondrial control). S2 cells transfected with Hsc70-5-HA or Rab32-HA plasmids. e When Rab32-HA or Hsc70-5-HA is immunoprecipitated with an anti-HA antibody, Dosmit can be detected in the Rab32-bound complex. f When endogenous Dosmit proteins are immunoprecipitated with the anti-Dosmit antibody, only Rab32-HA can be detected in the Dosmit–pulled-down complex. For the pull-down, 10 μg of input was loaded. For SDS-PAGE, 500 μg protein from the immunoprecipitation was loaded. Source data are provided as a Source data file.