Fig. 2. Characterization of in vitro reconstituted microtubule branching.
(A) Cryo-EM image of branched microtubules. Arrowheads show examples of branching points. Microtubules were stabilized with 1mM GMPCPP. (B) Snapshots of branching microtubules. “Guide-rail” depicts thin lines of density often seen at the split of the branch point. (C) Distribution of branching angles (47±15°, n = 99 branch points). These experiments were performed three independent times.