PEX5L/TRIP8b Blocking Peptide (#BLP-PR070) is the original antigen used for immunization during Anti-PEX5L (TRIP8b) Antibody (#APR-070) generation. The blocking peptide binds and ‘blocks’ Anti-PEX5L/TRIP8b primary antibody, this makes it a good negative reagent control to help confirm antibody specificity in western blot and immunohistochemistry applications. This control is also often called a pre-adsorption control.