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Fig. 5. The sem1
rpn10
double mutant has severe defects in RP lid integrity and DNA damage resistance. (A) Synthetic lethal interactions between sem1
and rpn10
at 36°C. (B) Disruption of the lid and dissociation of the lid from the base in sem1
rpn10
cells. Superose 6 fractions were subjected to immunoblot analysis with antibodies to the indicated proteins. (C) CP activity of the same column fractions used in B. (D) Growth defects of mutants exposed to canavanine, UV irradiation or hydroxyurea (HU). Cells were spotted onto plates in fivefold serial dilutions and were subjected to the indicated treatments at 30°C.