Interactions among M. xanthus Pil proteins detected by Y2H mating protocol.

*The first column and first row indicate proteins fused to GAD and GBD, respectively. Diploid cells containing the indicated pair of fusions were examined for growth on SD-His and SD-Ade plates. Plus (+), growth on both plates; minus (−), growth on neither plates.第一列与第一行分别代表与GAL4激活结构域（GAD）、GAL4结合结构域（GBD）融合的蛋白质。将携带指定融合蛋白对的二倍体细胞置于SD-His与SD-Ade平板上培养，检测其生长情况。以加号（+）表示在两种平板上均可生长，减号（−）表示在两种平板上均无法生长。