CACNA1B/Cav2.2 Blocking Peptide (#BLP-CC002) is the original antigen used for immunization during Anti-CACNA1B (CaV2.2) Antibody (#ACC-002) generation. The blocking peptide binds and ‘blocks’ Anti-CACNA1B/Cav2.2 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.