Western blot analysis of RSK2 on different lysates with Rabbit anti-RSK2 antibody (HA721033) at 1/5,000 dilution. Lane 1: MCF7 cell lysate (20 µg/Lane) Lane 2: HeLa cell lysate (20 µg/Lane) Lane 3: A431 cell lysate (20 µg/Lane) Lane 4: NIH/3T3 cell lysate (20 µg/Lane) Lane 5: Mouse skeletal muscle tissue lysate (40 µg/Lane) Lane 6: Rat skeletal muscle tissue lysate (40 µg/Lane) Predicted band size: 84 kDa Observed band size: 75 kDa Exposure time: 20 seconds; ECL: K1801; 4-20% SDS-PAGE gel. Proteins were transferred to a PVDF membrane and blocked with 5% NFDM/TBST for 1 hour at room temperature. The primary antibody (HA721033) at 1/5,000 dilution was used in primary antibody dilution (K1803) at 4℃ overnight. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1/50,000 dilution was used for 1 hour at room temperature.