When age, race, grade, pathology, T, N, M, stage, size, regional nodes positive, regional nodes examined, surgery, radiotherapy, chemotherapy, history of malignancy, clinical Gleason score (composed of needle core biopsy or transurethral resection of the prostate specimens), pathological Gleason score (composed of prostatectomy specimens) and PSA of one prostate cancer patient are inputted, user can click “Predict!” button to launch the pre-trained DeepPC. This evidence concerns the gene KLK3 and prostate cancer.