Figure 4. Sumoylation of Sae2 increases the levels of soluble Sae2.
G1-arrested cells were released into S phase in the presence of 0.03% MMS and cell extracts at indicated time points after release were prepared. Soluble fractions of Sae2-HA from indicated strains were examined by western blots using anti-HA antibody and anti-Adh1 antibody (loading control). Representative results are shown on top, and quantification of the relative amount of soluble Sae2 between the two compared strains from at least three independent trials is shown at the bottom. Asterisks indicate statistically significant differences (p<0.05). A. The level of soluble forms of Sae2 is decreased in sae2-K97R-3A cells compared to sae2-3A. B. The level of soluble forms of Sae2 is decreased in sae2-K97R cells compared to wild-type. C. The level of soluble forms of Sae2 is decreased in sae2-3A cells compared to wild-type.