FIGURE 4:
αTAT1 accessibility to its binding sites on tubulin polymers. (A) SDS gel (top) and quantitation (bottom) of pelleting assays showing that αTAT1 binds similarly to tubulin polymers assembled with vinblastine (coils) or Taxol (microtubules). (B) Shearing microtubules to create more microtubule ends does not increase binding of αTAT1 to microtubules. Data from three independent cosedimentation assays. Error bars, SD.