FIG. 2.

Effect of deletions on the structural model of the YadA stalk. (A) Ribbon presentation of the full-length wild-type YadA structure. (Modified from reference 22 with permission of the publisher.) (B and C) Comparison of the trimeric coiled-coil stalks of the wild type and four deletion mutants. Two of the mutants shown were predicted to alter the periodicity of the coiled-coil (B), and the other two were predicted to retain the wild-type periodicity of the stalk (C). The deleted regions in each stalk pair are indicated for the wild-type stalks.