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. 2016 Mar;26(3):365–375. doi: 10.1101/gr.196857.115

Figure 4.

Figure 4.

Fkh1-OE increases early origin firing and decreases replication fork rate. Strains JPy88 (WT) and JPy89 (Fkh1-OE) arrested and induced as described in Figure 2A were released into S phase without HU, and aliquots were incubated with BrdU for the indicated intervals and harvested. (A) qBrdU-seq analysis was performed in duplicate and plotted for Chromosome XI. (B) Analysis of the earliest decile of origins: Average BrdU incorporation is plotted for the indicated time intervals (upper panel), and the horizontal dashed line indicates the position at which fork rate measurements were calculated; the difference in BrdU incorporation between the first two intervals is plotted (lower panel). (C) Quantification of BrdU maximum peak height for the indicated loci for each time interval. Total BrdU (summed max peak heights) includes all origins including all copies of 2-micron and rDNA (ARS1200) origins. (D) Immunoblot analysis of Rad53; Rad53 is indicated with an asterisk, and phosphorylated Rad53 is indicated with two asterisks. “MMS” indicates sample was released after G1 block and Gal-induction into the presence of 0.033% MMS for 1 h prior to harvest.