Additionally, the testis germ cell proteins Fragile X Mental Retardation 1 Neighbor (FMR1NB), Nuclear RNA Export Factor 2 (NXF2), Melanoma Antigen Family A5 (MAGEA5), Fibrous Sheath Interacting Protein 1 (FSIP1), Transforming, Acidic Coiled-Coil Containing Protein 3 (TACC3) and START Domain Containing 6 (STARD6) have a role in mitotic fidelity in cancer cells [82]. This evidence concerns the gene FMR1NB and cancer.