Kv1.2/KCNA2 Blocking Peptide (#BLP-PC010) is the original antigen used for immunization during Anti-KV1.2 (KCNA2) Antibody (#APC-010) generation. The blocking peptide binds and ‘blocks’ Anti-Kv1.2/KCNA2 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.