KV8.1 (KCNV1) Blocking Peptide (#BLP-PC139) is the original antigen used for immunization during Anti-KV8.1 (KCNV1) Antibody (#APC-139) generation. The blocking peptide binds and ‘blocks’ Anti-KV8.1 (KCNV1) 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.