Figure 4.

AFM images of YB-1, tubulin and YB-1-tubulin complexes. Isolated YB-1 and tubulin form discrete particles of 0.7 and 3.7 nm heights, respectively. YB-1-tubulin complex samples formed at a 1:1 molar ratio show the presence of an additional population of particles with a height of about 7.9 nm. Histograms illustrating the height distribution of particles are displayed on right panels.