Fig. 1

Representative micropreparative two-dimensional (2-D) protein map of Helicobacter pylori associated with duodenal ulcer (B). (A) Around 300 μg of DU-associated H. pylori unlabelled proteins were resolved by IEF over the pI range NL 3–10, followed by 8–16% gradient SDS-PAGE and stained. Numbered spots indicate the H. pylori differentially expressed proteins, which are listed in Table 2