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Immunohistochemistry was performed on mouse skeletal muscle tissue. To expose target proteins, heat induced antigen retrieval was performed using 10mM sodium citrate (pH 6.0) buffer for 10 minutes using a microwave. Following antigen retrieval, tissues were blocked in 3% BSA-PBS for 30 minutes and then probed with (right panel) or without (left panel) a MuSK polyclonal antibody (Product ## PA1-1741) at a dilution of 1:20 overnight at 4C in a humidified chamber. Tissues were washed extensively with TBS + 0.025% Triton X-100 (Product ## 28314) and endogenous peroxidase activity quenched with Peroxidase Suppressor (Product ## 35000) for 30 minutes at room temperature. Detection was performed using a goat anti-rabbit HRP secondary antibody (Product ## 31460) followed by colorimetric detection using metal enhanced DAB (Product ## 34065). Tissues were counterstained with hematoxylin and prepped for mounting.
