Comment[ArrayExpressAccession] E-GEOD-50002 MAGE-TAB Version 1.1 Public Release Date 2013-08-20 Investigation Title Effect of Twist-box mutation on gene expression induced by Twist1 overexpression Comment[Submitted Name] Effect of Twist-box mutation on gene expression induced by Twist1 overexpression Experiment Description Twist1 is a transcription factor that induces EMT and drives metastasis in prostate cancer. We examined global gene expression in Myc-CaP mouse prostate cancer cells following overexpression of Twist1 and the Twist1 mutants F191G, AQA, and DQD. 15 total samples were analysed, with 3 replicates of 5 groups: Twist1-WT, Twist1-AQA, Twist1-DQD, Twist1-F191G, and vector control. We performed the comparisons: WT > VEC, F191G > VEC. Samples were normalized by Twist1 expression in addition to normal 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 Williams Gajula Tran Person First Name Russell R P Person Email russell.d.williams@gmail.com Person Affiliation Johns Hopkins University Person Address Radiation Oncology, Johns Hopkins University, 1550 Orleans St, Baltimore, MD, USA Person Roles submitter Protocol Name P-GSE50002-1 P-GSE50002-4 P-GSE50002-5 P-GSE50002-2 P-GSE50002-3 P-GSE50002-6 Protocol Description All analysis performed in R. Data normalized using RMA from the limma package, and further normalization for Twist1-expression was carried out. For R script used for analysis, see supplemental data (Gajula et al., 2013) ID_REF = VALUE = RMA normalized signal intensity. Affymetrix WT Labeling kit, according to manufacturer's instructions Affymetrix Mouse Exon 1.0 arrays, according to manufacturer's instructions, washed with Fluidics 450 after transfection and selection, cells were grown to confluence and harvested Trizol RNA purification Affymetrix M10 scanner, using software Affymetrix Genechip Command Console v2.0.0.1029 Protocol Type normalization data transformation protocol labelling protocol hybridization protocol growth protocol nucleic acid extraction protocol array scanning protocol Experimental Factor Name BATCH KNOCK-IN Experimental Factor Type batch knock-in Comment[SecondaryAccession] GSE50002 Comment[GEOReleaseDate] 2013-08-20 Comment[ArrayExpressSubmissionDate] 2013-08-19 Comment[GEOLastUpdateDate] 2013-08-21 Comment[AEExperimentType] transcription profiling by array SDRF File E-GEOD-50002.sdrf.txt