CLC-K Blocking Peptide (#BLP-CL004) is the original antigen used for immunization during Anti-CLC-K Antibody (#ACL-004) generation. The blocking peptide binds and ‘blocks’ Anti-CLC-K 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.