Thermo Scientific™ Pierce Peroxidase Suppressor is a stable, easy-to-use inhibitor of endogenous peroxidase activity from cells and tissues to reduce background signal in HRP-based immunohistochemistry applications
The immunoperoxidase method is a commonly used detection method for immunostaining of cells and tissues
However, the analysis often is complicated by the presence of endogenous peroxidase and “pseudoperoxidase” activity in the cells and tissues
This presence results in nonspecific staining when a substrate such as diaminobenzidine (DAB) is present
Nonspecific staining is difficult to distinguish from the immunochemical marker, making it difficult to distinguish the final location of the antigen of interest
The typical method of inhibiting endogenous peroxidase activity involves hydrogen peroxide or hydrogen peroxide in methanol
The peroxidase suppressor inhibits peroxidase activity even more effectively than the method using hydrogen peroxide in methanol
Plus, the Peroxidase Suppressor does not affect antibody activity
Peroxidase Suppressor also can be used on blots of whole cell supernatant prior to the addition of the horseradish peroxidase (HRP) marker
Highlights: Stable One component Ready-to-use Effectively inhibits peroxidase activity without interfering with antigen-antibody interactions