Kv2.2/KCNB2 Blocking Peptide (#BLP-PC120) is the original antigen used for immunization during Anti-KV2.2 (KCNB2) Antibody (#APC-120) generation. The blocking peptide binds and ‘blocks’ Anti-Kv2.2/KCNB2 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.