Though the incidence of single nucleotide mutation in SIVA in breast cancer was low, a survey of The Cancer Genome Atlas (TCGA; [43]) via the Genomic Data Commons Data Portal found that 19% (204/1063) of primary breast cancers and 23% (129/560) of primary ovarian cancers had loss of copy numbers of SIVA. The gene discussed is SIVA1; the disease is ovarian cancer.