Identification of H. pylori strain specific DNA sequences between two clinical isolates from NUD and gastric ulcer by SSH

Figure 1 Dot blotting to screen the tester strain specific inserts by using the Alu I digested tester DNA (A) and driver DNA (B) as probes. The arrowheads indicate the spots of positive controls.

Figure 2 Dot blotting for identification the disease related DNA sequences in 27 different clinical isolates by using GU210 (A), GU79 (B), GU198 (C) and GU235 (D) as probes. The arrow-heads indicate the spots of positive controls.