FIGURE 6.
Disruption of the interaction between the UHM of Cus2 and the ULM of Hsh155 bypasses the essential ATP-dependent function of Prp5. The ULM of Hsh155 was mutated (R100D, W101A) in yeast strain DS4D (prp5Δ, cus2Δ, u2Δ; Perriman et al. 2003) harboring pRS317-CUS2, pRS315-U2, and pRS316-PRP5. The wild-type and hsh155RW-DA mutant strains were then transformed with pRS314-prp5-GNT (left) and then plated on medium containing 5-FOA (right) to select for cells able to lose the pRS316-PRP5 plasmid.