P2Y13 Receptor Blocking Peptide (#BLP-PR017) is the original antigen used for immunization during Anti-P2Y13 Receptor Antibody (#APR-017) generation. The blocking peptide binds and ‘blocks’ Anti-P2Y13 Receptor 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.