A small epitope shared by p53 and an unrelated protein upregulated after adenovirus infection
Miciak, J. J.; Bunz, F.
Show abstract
Cancers commonly harbor point mutations in TP53 that cause overexpression of functionally inactive p53 proteins. These mutant forms of p53 are immunogenic, and therefore present tantalizing targets for new forms of immunotherapy. Understanding how the immune system recognizes p53 is an important prerequisite for the development of targeted therapeutic strategies designed to exploit this common neoantigen. Monoclonal antibodies have been extensively used to probe the structural conformation of the varied isoforms of p53 and their respective mutants, and are still indispensable tools for studying the complex biological functions of these proteins. In this report, we describe the mapping of a novel epitope on p53 that appears to be shared by heat shock proteins (HSPs), which are typically upregulated in response to a variety of viral infections.
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