GIRK2/Kir3.2 Blocking Peptide (#BLP-PC006) is the original antigen used for immunization during Anti-GIRK2 (Kir3.2) Antibody (#APC-006) generation. The blocking peptide binds and ‘blocks’ Anti-GIRK2/Kir3.2 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.