![Graphic illustrating structure of yeast outer kinetochore – microtubule complex: the grey microtubule is encircled by the multicoloured outer kinetochore ring structure composed of Ndc80-Nuf2 and Dam1c ring complexes.](https://www2.mrc-lmb.cam.ac.uk/wordpress/wp-content/uploads/outer-KT-figure_square-150x150.png)
Structure of the outer kinetochore bound to microtubules, determined by David Barford’s group in the Structural Studies Division, reveals how phosphorylation regulates mitotic spindle chromosome attachment errors to ensure DNA is equally segregated into two daughter cells.