Figure 4. The N-terminal tail of Hec1 is necessary for establishing cold-stable microtubule attachments.
(A) Cells were incubated in ice-cold media for 10 min before fixation and immunofluorescence. Representative cells from each mitotic phase are shown as indicated. Arrows point to kinetochores that are enlarged below each merge. Bar = 5μm and 1μm (B) 10 kinetochores from 5 or more cells (n>50) were scored for associated microtubules in two independent assays and the mean percentage in early prometaphase (EP), late prometaphase (LP), and metaphase (M) was plotted. Error bars indicate standard deviation.