Figure 2.

Tomogram of an F-actin-aldolase raft. A section from the raw tomogram taken through the middle of the raft. The resolution clearly resolves the actin subunits and the crosslinks. In some motifs, F-actin pairs are linked by one aldolase (white arrows) or by two aldolase molecules (white arrowheads). Note that some stretches of F-actin display no cross-links (white asterisk). When no cross-links form the filaments appear closer together than when crosslinks are present. This same region is shown in Figure 6 with the white box marking the area shown in Figure 6b–d. The direction of view is such that the monolayer lies below the F-actin raft.