Loading control antibodies and isotype control antibodies are categories of antibodies that provide practical and utilitarian means for standardizing, normalizing and validating results of qualitative, quantitative and semi-quantitative immunoassay protocols, such as western blotting.


Featured control antibody categories

Isotype Control Antibodies

Learn about selecting an appropriate negative control antibody, one which lacks target specificity but otherwise matches the immunoglobulin class and type of the primary antibody used in an immunoassay application.

Loading Control Antibodies

Select an antibody against a common loading or expression control protein. These are helpful in western blotting, where they enable comparison of the amount of protein loaded in each well across a gel.