KCNH6/erg2 Blocking Peptide (#BLP-PC114) is the original antigen used for immunization during Anti-KCNH6 (erg2) Antibody (#APC-114) generation. The blocking peptide binds and ‘blocks’ Anti-KCNH6/erg2 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.