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. 2012 Mar 15;23(6):1058–1067. doi: 10.1091/mbc.E11-10-0852

FIGURE 4:

FIGURE 4:

Rad53 phosphorylation in the absence of 9-1-1 requires Mrc1. (A) Cells of the indicated genotype were treated with HU for 2.5 h at 30°C. All strains carry the sml1-1 mutation, which suppresses lethality of mec1∆. Rad53 phosphorylation was visualized by SDS–PAGE and Western blot. Cdc28 served as a loading control. (B) After HU treatment as described in A for the indicated time, HU was washed out and cells were plated on rich medium to measure viability. (C) Cells of the indicated genotype were treated with HU for 2.8 h at 30°C and processed as in A. (D) Cells of the indicated genotype were treated with MMS for 4 h at 22.5°C, and phosphorylation of FLAG-tagged Rad9 and Rad53-HA was visualized by SDS–PAGE and Western blotting.