Evidence of b4GalT in prostatic cancer samples is found by detection of Galβ1,4GlcNAc (Type II) structure with the Erithrina cristagalli lectin (ECL) in PSA from prostate cancer serum and PSA from LNCaP medium as compared to seminal plasma (normal control) [25]. The gene discussed is KLK3; the disease is Familial prostate cancer.