Figure 1. Western blot analysis of P2RX4 using anti-P2RX4 antibody (PB9304). Electrophoresis was performed on a 5-20% SDS-PAGE gel at 70V (Stacking gel) / 90V (Resolving gel) for 2-3 hours. The sample well of each lane was loaded with 30ug of sample under reducing conditions. Lane 1: human Hela whole cell lysates, Lane 2: human MCF-7 whole cell lysates, Lane 3: human A375 whole cell lysates, Lane 4: human T-47D whole cell lysates, Lane 5: human A549 whole cell lysates, Lane 6: monkey COS-7 whole cell lysates, Lane 7: rat NRK whole cell lysates, Lane 8: rat RH-35 whole cell lysates, Lane 9: mouse kidney tissue lysates, Lane 10: mouse liver tissue lysates, Lane 11: mouse Raw264.7 whole cell lysates, Lane 12: mouse HEPA1-6 whole cell lysates. After Electrophoresis, proteins were transferred to a Nitrocellulose membrane at 150mA for 50-90 minutes. Blocked the membrane with 5% Non-fat Milk/ TBS for 1.5 hour at RT. The membrane was incubated with rabbit anti-P2RX4 antigen affinity purified polyclonal antibody (Catalog # PB9304) at 0.5 microg/mL overnight at 4°C, then washed with TBS-0.1%Tween 3 times with 5 minutes each and probed with a goat anti-rabbit IgG-HRP secondary antibody at a dilution of 1:5000 for 1.5 hour at RT. The signal is developed using an Enhanced Chemiluminescent detection (ECL) kit (Catalog # EK1002) with Tanon 5200 system. A specific band was detected for P2RX4 at approximately 72KD. The expected band size for P2RX4 is at 43KD.