Figure 2.
AglZ and AgmU clusters (indicated by white arrows) appear stationary as cells move forward. Gliding cells expressing AglZ-YFP or AgmU-mCherry were imaged by fluorescence microscopy at frequent intervals. (a) AglZ-YFP clusters appear to remain stationary with respect to the substratum as cells glide forward; this behavior is reminiscent of focal adhesion proteins in eukaryotic cells (adapted from Reference 56). (b) Cytoplasmic clusters of AgmU-mCherry appear similar to AglZ clusters (adapted from Reference 60).