Figure 1From: Molecular characterization of cytolethal distending toxin gene-positive Escherichia coli from healthy cattle and swine in Nara, Japan Schematic representation of PCR primer binding region of type specific PCR for cdt-III and cdt-V . White (Cdt-IIIAf, Cdt-IIICr and CdtIIIC-R), black (CdtVC-R, P2-A2, cdtA-F, cdtC-F and P2-C3) and gray (CdtIII/VB-F) arrows indicate PCR primers which specifically bind to cdt-III, cdt-V and both cdt-III and cdt-V genes, respectively.Back to article page