NCX3/SLC8A3 Blocking Peptide (#BLP-NX013) is the original antigen used for immunization during Anti-NCX3 (SLC8A3) Antibody (#ANX-013) generation. The blocking peptide binds and ‘blocks’ Anti-NCX3/SLC8A3 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.