The Vector® M.O.M.™ Immunodetection Kits are specifically designed to localize mouse primary antibodies on mouse tissues. The major problem with using mouse primary antibodies on mouse tissues in immunohistochemistry is the inability of the anti-mouse secondary antibody to distinguish between the mouse primary antibody and endogenous mouse immunoglobulins in the tissue. This can result in high background staining which obscures specific staining. This problem can be essentially eliminated by using a Vector® M.O.M.™ Immunodetection Kit which includes a proprietary M.O.M.™ Mouse Ig Blocking Reagent with a specialized M.O.M.™ Biotinylated Anti-Mouse Ig to significantly reduce undesired binding of the secondary antibody to endogenous tissue immunoglobulin.

Key advantages of the Vector® M.O.M.™ Immunodetection Kits:

  • Significant reduction of endogenous mouse Ig staining when using mouse primary antibodies on mouse tissue
  • Clear, crisp specific staining of antigens of interest
  • Based on VECTASTAIN® ABC reagent protocols
  • Procedures are simple and easy to follow
  • No tedious calculations or antibody prebinding steps required

    The Vector® M.O.M.™ Immunodetection Kits are useful in any mouse-on-mouse application, such as studies in genetically engineered mice, including transgenic and knock-out models, as well as mouse xenografts.

    The M.O.M.™ Kits can be also used in multiple antigen staining protocols to localize two different mouse primary antibodies on the same mouse tissue sections using fluorescent or enzyme-based detection systems. Detailed information for multiple antigen labeling can be found in our brochure, “ Discovery Through Color: A Guide to Multiple Antigen Labeling”, available on our website.

    Three Vector® M.O.M.™ Kits are available. All kits use the same proprietary M.O.M.™ Mouse Ig Blocking Reagent and the M.O.M.™ Biotinylated Anti-Mouse Ig Reagent, but offer a choice of an enzyme-based or fluorescent-based visualization method. M.O.M.™ Mouse Ig Blocking Reagent and M.O.M.™ Biotinylated Anti-Mouse Ig Reagent are also available separately.
  • Without and With the M.O.M. Kit

    The following links contain images of mouse sections stained with mouse antibodies using the M.O.M. system compared to sections stained with mouse antibodies but not using the M.O.M. system.
    Examples of MOM applications for light microscopy
    Examples of MOM applications for fluorescence microscopy
    Double label with mouse primary antibodies on mouse tissue

    Following are examples of mouse sections double stained with mouse antibodies.
    Double Label Mouse on Mouse examples for light microscopy
    Double Label Mouse on Mouse applications for fluorescence microscopy
    Protocol for multiple immunofluorescent staining using mouse monoclonal antibodies:
    MOMmulti.pdf (PDF)