Much like other MAGE genes and X-linked cancer-testis antigens, MAGEC3 mRNA from bulk sequencing had a low dynamic range despite measurable protein expression and demonstrated some linear correlation with protein expression (Pearson’s r = 0.267, p = 0.0003), likely due to a few high leverage points (Spearman’s ρ = −0.003, p = 0.968). This evidence concerns the gene MAGEC3 and cancer.