Generation of novel recombinant antibodies against nitrotyrosine by antibody phage display.

Nitrotyrosine is a posttranslational protein modification that occurs under oxidative and nitrosative stress, and plays an important role in numerous pathological conditions. To analyse nitrotyrosine formation several commercial monoclonal and polyclonal antibodies reacting with 3-nitrotyrosine have been developed which however do not work properly in all required assays. Here, antibody phage display was used to select recombinant antibodies that specifically react with nitrotyrosine in various protein contexts.