Figure 1. Isolated mitochondria from human heart (lane 1), bovine heart (lane 2), rat heart (lane 3), and mouse heart (lane 4) detected with (MS503) anti-beta antibody. Extra bands in the mouse sample (lane 4) are due to the reaction of the IgG-specific goat anti-mouse secondary antibody with residual mouse blood in the heart tissue, as it is very difficult to entirely remove the blood from these small organs.

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