Comment[ArrayExpressAccession] E-GEOD-47712 MAGE-TAB Version 1.1 Public Release Date 2013-06-07 Investigation Title Functional studies of the Yeast Mediator Tail Module Subunits Comment[Submitted Name] Functional studies of the Yeast Mediator Tail Module Subunits Experiment Description The yeast Mediator complex can be divided into three modules, designated Head, Middle and Tail. Tail comprises the Med2, Med3, Med5, Med15 and Med16 protein subunits, which are all encoded by genes that are individually non-essential for viability. In cells lacking Med16, Tail is displaced from Head and Middle. However, inactivation of MED5/MED15 and MED15/MED16 are synthetically lethal, indicating that Tail performs essential functions as a separate complex even when it is not bound to Middle and Head. We have used the N-Degron method to create temperature sensitive (ts) mutants in the Mediator tail subunits Med5, Med15 and Med16 to study the immediate effects on global gene expression when each subunit is individually inactivated, and when MED5/15 or MED15/16 are inactivated together. All Degron constructs were expressed from their normal chromosomal location under the control of their respective endogenous promoters. We isolated RNA from each strain as early as 45 minutes after changing from the permissive to the restrictive growth conditions to minimize possible secondary effects on gene expression that are not directly caused by the Degron construct(s). Term Source Name ArrayExpress EFO Term Source File http://www.ebi.ac.uk/arrayexpress/ http://www.ebi.ac.uk/efo/efo.owl Person Last Name Selth Larsson Uvell Selth Bjorklund Person First Name Luke Miriam Hanna Luke Stefan Person Email luke.selth@adelaide.edu.au Person Affiliation University of Adelaide Person Address University of Adelaide, Frome Rd, Adelaide, Australia Person Roles submitter Protocol Name P-GSE47712-1 P-GSE47712-4 P-GSE47712-5 P-GSE47712-2 P-GSE47712-3 P-GSE47712-6 Protocol Description The data were analyzed with robust multi-array average (RMA) algorithm using default settings. ID_REF = VALUE = RMA signal intensity One-Cycle Target Labeling kit (Affymetrix) Following fragmentation, 15 ug of cRNA were hybridized for 16 hr on Affymetrix Yeast Genome 2.0 Array. GeneChips were washed and stained in the Affymetrix Fluidics Station 400. All strains were grown in YPRCu at 24C to approximately 1x10 7 cells/ml. The media was switched to YPGalactose and growth was continued at 24C for 35 minutes. The cells were transferred to pre-warmed YPGalactose (37C) and growth was continued at 37C for 45 minutes before harvesting RNeasy Mini kit (Qiagen), with on-column Dnase digestion GeneChips were scanned using the Hewlett-Packard GeneArray Scanner G2500A. Protocol Type normalization data transformation protocol labelling protocol hybridization protocol growth protocol nucleic acid extraction protocol array scanning protocol Experimental Factor Name STRAIN OR LINE Experimental Factor Type strain or line Comment[SecondaryAccession] GSE47712 Comment[GEOReleaseDate] 2013-06-07 Comment[ArrayExpressSubmissionDate] 2013-06-06 Comment[GEOLastUpdateDate] 2013-06-08 Comment[AEExperimentType] transcription profiling by array SDRF File E-GEOD-47712.sdrf.txt