However, there are some genes, such as PCNAP1 (pseudogene 1 of the proliferating cell nuclear antigen in human [33]) and IFNK (a cytokine that imparts cellular protection against viral infection in a species-specific manner) without literature relation to cancer that appear in a relevant position regarding their beta value (19th and 31th position, respectively). The gene discussed is PCNA; the disease is viral infectious disease.