Co-immunoprecipitation (Co-IP) from biotinylated <i>H. pylori</i> extract and recombinant proteins co-expressed in <i>E. coli</i> showing interacting partners of CagI.

<p>(<b>A</b>) Western blots showing co-immunoprecipitation of biotinylated proteins by anti-CagI antibody from biotin labeled <i>H. pylori</i> extract. Blots were probed with HRP-conjugated anti-biotin antibody (α-biotin) and anti-CagI antibody (α-CagI). Arrows indicate biotinylated protein bands. (<b>B</b> and <b>C</b>) Western blots showing Co-IP of recombinant Hp1489 (GST-tag) and CagI (without tag) by anti-CagI and anti-Hp1489 antibodies respectively. Antibodies used in Western blots are indicated. M-indicates standard protein size markers.