Cav3.3/CACNA1I Blocking Peptide (#BLP-CC009) is the original antigen used for immunization during Anti-CaV3.3 (CACNA1I) Antibody (#ACC-009) generation. The blocking peptide binds and ‘blocks’ Anti-Cav3.3/CACNA1I 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.