KCNH5/EAG-2 Blocking Peptide (#BLP-PC053) is the original antigen used for immunization during Anti-KCNH5 (EAG-2) Antibody (#APC-053) generation. The blocking peptide binds and ‘blocks’ Anti-KCNH5/EAG-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.