Fig. 2From: Screening of sperm antigen epitopes by phage display technique and its preliminary clinical applicationPCR amplification results of positive phage DNA. 1: DNA marker; 2, 3: PCR products. The DNA of positive phage clones was extracted and amplified by PCR, and PCR products (~ 200 bp) were assessed by electrophoresis on 2% agaroseBack to article page