KCNK12/THIK-2 (extracellular) Blocking Peptide (#BLP-PC169) is the original antigen used for immunization during Anti-KCNK12 (THIK-2) (extracellular) Antibody (#APC-169) generation. The blocking peptide binds and ‘blocks’ Anti-KCNK12/THIK-2 (extracellular) 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.