L3mbtl3 is mutated in medulloblastoma and is further implicated in other pathological disorders such as multiple sclerosis, insulin resistance, prostate cancer, and breast cancer (Andlauer et al., 2016; Bonasio et al., 2010; Kar et al., 2016; Lotta et al., 2017; Northcott et al., 2009). The gene discussed is L3MBTL3; the disease is breast cancer.