GPR17 Blocking Peptide (#BLP-GR048) is the original antigen used for immunization during Anti-GPR17 Antibody (#AGR-048) generation. The blocking peptide binds and ‘blocks’ Anti-GPR17 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.