chTOG, a microtubule polymerase, interacts with TACC3 during mitosis to regulate spindle formation. By studying their Xenopus homologues, Mortuza et al. discover that one TACC3 recruits two chTOG molecules to the spindle, increasing its local concentration and promoting microtubule elongation.
- Gulnahar B. Mortuza
- Tommaso Cavazza
- Guillermo Montoya