Fig. 1From: Idiopathic male infertility is strongly associated with aberrant DNA methylation of imprinted loci in sperm: a case-control studyStructural characteristics of the human DMRs of H19 (a), GNAS (b), and DIRAS3 (c). Filled boxes and horizontal arrows indicate the genes and orientation, respectively. Open boxes represent the DMRs of the genes. The horizontal arrows represent the primers. Vertical arrows indicate the unique bisulfite PCR restriction enzyme sites analyzed in T, TaqI, and B, BstUI. The vertical bars represent CpG sitesBack to article page