MAP2K7 and cancer: While not all DNA viruses are definitively linked to cancer, and not all cancers are caused by DNA viruses, EBV, KSHV, HPV, HBV, and MCPyV are examples of how the infectious cycles of DNA viruses create vulnerabilities and increase host susceptibility to cancer development through the manipulation of important signaling proteins like Raf, MEK, and ERK [206,207].