Nociceptin Receptor/OPRL1 Blocking Peptide (#BLP-OR015) is the original antigen used for immunization during Anti-Nociceptin Receptor (OPRL1) Antibody (#AOR-015) generation. The blocking peptide binds and ‘blocks’ Anti-Nociceptin Receptor/OPRL1 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.