GSG1L Blocking Peptide (#BLP-GC048) is the original antigen used for immunization during Anti-GSG1L Antibody (#AGC-048) generation. The blocking peptide binds and ‘blocks’ Anti-GSG1L 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.