A non‐exhaustive list suggests that MCM2,6, 7, 8, 9, 10, 11 MCM3,9, 10, 12 MCM4,9, 10, 13, 14 MCM5,10, 14, 15 MCM6,10, 16 and MCM76, 10, 12 could be powerful diagnostic and prognosis markers in numerous cancer types (also see recent review17). This evidence concerns the gene MCM3 and cancer.