25 ug of HeLa cell lysate spiked with 3.5 ug of mouse IgG was run in lanes 2, 3, 5 and 6 under reducing conditions on SDS PAGE using the V3 system and transferred to PVDF membrane. Precision Plus MW marker was run in lanes 1 and 4. Mouse anti actin gamma (VMA00049) was used to detect actin gamma (approximate MW of 46 kDa) in lanes 2 and 5 only. Lanes 3 and 6 were used as controls to detect the background signaling of the secondary detection agent (no primary antibody control).. TidyBlot Western Blot Detection Reagent:HRP was used as the secondary reagent in lanes 2 and 3 and an HRP conjugated anti-mouse IgG heavy and light chain antibody was used as the secondary in lanes 5 and 6. The Blot was visualized with the Chemidoc. The TidyBlot Western Blot Detection Reagent:HRP only bound to the native actin gamma antibody whereas the standard anti-Mouse IgG heavy and light recognized both the native and denatured antibodies