Nav1.5/SCN5A (493-511) Blocking Peptide (#BLP-SC005) is the original antigen used for immunization during Anti-NaV1.5 (SCN5A) (493-511) Antibody (#ASC-005) generation. The blocking peptide binds and ‘blocks’ Anti-Nav1.5/SCN5A (493-511) 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.