CTNNB1 and melanoma: At Vanderbilt, we routinely assess for 43 common somatic mutations in 6 genes in all melanoma patients: BRAF (V600), NRAS (G12/13, Q61), KIT (W557, V559, L576, K642 and D816), GNAQ (Q209), GNA11 (Q209), and CTNNB1 (S37/S45), using our melanoma SNaPshot assay [4].