RAD51 and melanoma: We observed an increase in the number of RAD51 foci in the healthy-donor skin fibroblasts (SBLF7, SBLF9) and melanoma cell lines ANST and LIWE following CC-115 treatment and radiation treatment compared to the untreated control (red-dashed line) and thus these cell cultures/lines were defined as HR-proficient (Figure 5).