NCX2/SLC8A2 Blocking Peptide (#BLP-NX012) is the original antigen used for immunization during Anti-NCX2 (SLC8A2) Antibody (#ANX-012) generation. The blocking peptide binds and ‘blocks’ Anti-NCX2/SLC8A2 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.