Description
Yeast knockout strains were constructed by the Yeast Deletion Project.  Three biological replicates were analyzed for each strain.  5 ml cultures were inoculated at OD600 = 0.2 from saturated overnight cultures and grown to mid-log phase (OD600 = 0.6 - 0.8) in YPD media 37 or in phosphate-depleted media 38 at 30C.   Cells were harvested by centrifugation and washed with nuclease-free water (Ambion).   Total RNA was isolated immediately after harvest using the Ribopure Yeast RNA Isolation Kit (Ambion).  5 mg of total RNA was used to generate labeled probes with standard Affymetrix protocols.