Skip to main content
. 2015 Jul 30;10(7):e0134297. doi: 10.1371/journal.pone.0134297

Fig 4. Hop1-S298 phosphorylation promotes stable Mek1-Hop1 interaction on chromosomes.

Fig 4

(A) Hop1 and Mek1-HA chromosome association during dmc1Δ meiosis at 23°C in a HOP1, hop1-S298A, or hop1-T318A background. (B) and (C) Effects of hop1-S298A or hop1-T318A on Hop1 chromosome association during DMC1 or dmc1Δ meiosis. Fraction of cells exhibiting 10 or more Hop1 foci was scored. (D) and (E) Effects of hop1-S298A or hop1-T318A on Mek1-HA chromosome association during DMC1 or dmc1Δ meiosis. Fraction of cells exhibiting 10 or more Mek1-HA foci was scored. (F) and (G) Effects of hop1-S298A and hop1-T318A on Hop1-Mek1 co-localization during DMC1 and dmc1Δ meiosis. Fraction of nuclei where more than 80% of Mek1-HA foci co-localized with Hop1 foci was scored. (B-G) Errors were calculated from the 95% confidence interval of a binomial distribution. (H) and (I) Effects of hop1-S298A on Hop1-Mek1 interaction on chromosomes. Nuclear spreads of HOP1 dmc1Δ and hop1-S298A dmc1Δ were prepared from samples taken at 6 hours after induction of synchronous meiosis at 23°C. The spreads were stained with DAPI and the antibodies against Hop1 and HA (for detection of Mek1-HA).