As in the case of the prostate cancer cell lines, upper-than-expected RT-PCR bands were detected (Figure 7B, β band) that, once sequenced, corresponded to specific SHBG transcripts whose exon 1A and 1B sequences were followed by the exon 1 sequence using the 3' splice sites a and b (Figure 7D). Here, SHBG is linked to prostate carcinoma.