A. Cytosolic and organelle luminal markers; B. Membrane-bound markers; C. Nuclear markers, and D. Cytoskeleton markers. Typical low- (9,000 xg) and ultra- (120,000 xg) centrifugation speeds were used. The data are shown as mean±S.E., n=3. HM1: Bead homogenizer (2 cycles); HM2: Bead homogenizer (3 cycles); HM3: Hand-held rotary homogenizer with plastic probes; HM4: Cryogenic grinding with mortar and pestle. H: Homogenate; S1: S9 fraction; P1: Pellet 1 (heavy membrane); S2: Cytosolic fraction; P2: Pellet 2; S3: Wash supernatant; P3: Microsomal fraction. Statistical analysis was performed using one-way ANOVA and Dunnett post-test (HM1 as control). * P<0.05, **P<0.01 and ***P<0.001