Western blot analysis of GAPDH was performed by loading 25 µg of Hela (lane 1), 293 (lane 2), HUVEC (lane 3) and PC12 (lane 4) cell lysates onto an SDS polyacrylamide gel. Proteins were transferred to a PVDF membrane and blocked at 4ºC overnight. The membrane was probed with a GAPDH polyclonal antibody (Product # PA1-987) at a dilution of 1:3000 overnight at 4°C, washed in TBST, and probed with an HRP-conjugated secondary antibody for 1 hr at room temperature in the dark. Chemiluminescent detection was performed using Pierce ECL Plus Western Blotting Substrate (Product # 32132). Results show a band at ~36 kDa.
Western blot analysis was performed on whole cell extracts (30 µg lysate) of A-431 (Lane 1), COS-7 (Lane 2), MDCK (Lane 3), PC-3 (Lane 4) and tissue extract (30 µg lysate) of Ms Brain (Lane 5). The blot was probed with Anti-GAPDH Polyclonal Antibody (Product # PA1-987, 1:1,000 dilution) and detected by chemiluminescence using Goat anti-Rabbit IgG (H+L) Superclonal™ Secondary Antibody, HRP conjugate (Product # A27036, 0.25 µg/mL, 1:4000 dilution). A 37 kDa band corresponding to GAPDH was observed across the cell lines tested. Known quantity of protein samples were electrophoresed using Novex® NuPAGE® 10% Bis-Tris gel (Product # NP0302BOX), XCell SureLock™ Electrophoresis System (Product # EI0002) and Novex® Sharp Pre-Stained Protein Standard (Product # LC5800). Resolved proteins were then transferred onto a nitrocellulose membrane with iBlot® 2 Dry Blotting System (Product # IB21001). The membrane was probed with the relevant primary and secondary Antibody following blocking with 5% skimmed milk. Chemiluminescent detection was performed using Pierce™ ECL Western Blotting Substrate (Product # 32106).
Supplier Page from Thermo Fisher Scientific for GAPDH Antibody