In contrast to the 4q13.3 peak in tumors, the 4q13.2 region was the peak in the cell lines, due to the presence of small focal amplifications in 4q13.2 in 22Rv1 and CWR-R1, which contains the testosterone metabolizing genes UGT2B17 and UGSTB215. In both the prostate cell lines and tumor samples, 8q24.21, which contains the MYC gene, were also a major amplification peak. Here, UGT2B17 is linked to neoplasm.