A lot of molecules play fundamental roles in neoplasic processes and cancer. Heat shock proteins may enhance this severe pathology and favor the protumoral milieu. However, a look at the literature tells us that these molecules intervene in both to promote or attack cancer cells. In the case of breast cancer is known that Hsp70 (isoform 2) improve this establishment and progression in the patient, and is possible that the ATPase domain of Hsp70-2 favors this disease. Thus, is relevant to know if this molecular region has immunogenic activity as well as which epitopes are essential to stimulate immune cells, and whether could induce the attack of the tumor mass. In this aim, the immunogenicity of ATPase domain of Hsp70-2 was studied in silic...