ERBB2 and cancer: Specific fields distinguish and classify mutated epitopes (neoepitopes), tumor-associated antigens (TAA) such as differentiation or tissue-specific antigens (e.g., Melan-A, PSA), overexpressed antigens (e.g., HER-2, Muc-1), or cancer-germline antigens (e.g., MAGE, NY-ESO1).