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IHC Protein Competition, Protein Background

IHC Protein Competition Background Blocking

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#1 Laura Robin

Laura Robin


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Posted 12 October 2016 - 12:25 PM

Hi there,


I am attempting to perform a protein competition with a commercial antibody. The signal from the antibody seems to have been reduced, but we cannot say definitively as there is intense background from the protein on the tissue. 


I was hoping someone could recommend me the best course of action in order to eliminate this background. I have tried BSA, but this eliminates staining from my antibody.


Thanks for your help!

#2 bob1


    Thelymitra pulchella

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Posted 13 October 2016 - 01:14 PM

There are a range of different buffers you can use for antibody binding solutions (other than tris and phosphate based buffers), and also a range of different blocking reagents you might try (casein, gelatin (fish, pig, cow), normal antisera, albumin etc.). 


Some details on your protocol might help.

Also tagged with one or more of these keywords: IHC, Protein, Competition, Background, Blocking

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