Figure 1. Western blot analysis of Uroplakin Ib/UPIb using anti-Uroplakin Ib/UPIb antibody (A10230-1). 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 K562 whole cell lysates, Lane 2: human SK-OV-3 whole cell lysates, Lane 3: rat stomach tissue lysates, Lane 4: mouse stomach tissue 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-Uroplakin Ib/UPIb antigen affinity purified polyclonal antibody (Catalog # A10230-1) 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 Uroplakin Ib/UPIb at approximately 30KD. The expected band size for Uroplakin Ib/UPIb is at 30KD.