However, significant changes in the N-glycosylation patterns were observed for Asn61 of KLK3/PSA in prostate cancer, including an additional N-glycosylation site in the Asp95Asn variant, and for Asn132 of KLK6 in ovarian cancer (Figure 1C) [15,16,17]. The gene discussed is KLK6; the disease is ovarian carcinoma.