Comment[ArrayExpressAccession] E-MTAB-3711 MAGE-TAB Version 1.1 Investigation Title Identification of chicken Interferon Stimulated Genes (ISGs) using Affymetrix GeneChip Chicken Genome Arrays Comment[Submitted Name] Identification of chicken Interferon Stimulated Genes (ISGs) using Affymetrix GeneChip Chicken Genome Arrays Experiment Description Recombinant chicken IFN1 was prepared as previously reported (Laidlaw et al, 2013) and was added in chicken embryo fibroblasts to a final concentration of 1000 U/ml. Confluent cells were treated with chicken IFNa or mock treated and incubated for six hours before harvesting. The experiment was repeated in triplicate with three different batches of CEFs. Experimental Design compound treatment design replicate design reference design Experimental Design Term Source REF EFO EFO EFO Experimental Design Term Accession Number EFO_0001755 EFO_0001776 EFO_0001775 Experimental Factor Name compound dose Experimental Factor Type compound dose Experimental Factor Term Source REF Experimental Factor Term Accession Number Person Last Name Giotis Skinner Person First Name Efstathios Michael Person Mid Initials S A Person Email e.giotis@imperial.ac.uk m.skinner@imperial.ac.uk Person Phone 7896498097 0207 594 3938 Person Fax 0207 594 3973 0207 594 3973 Person Address Section of Virology Faculty of Medicine, St. Mary’s Campus Norfolk Place, London, W2 1PG Section of Virology Faculty of Medicine, St. Mary’s Campus Norfolk Place, London, W2 1PG Person Affiliation Postdoctoral scientist in Virology Imperial College London Reader in Virology Imperial College London Person Roles submitter Date of Experiment 2012-06-30 Public Release Date 2015-10-01 Protocol Name P-MTAB-45524 P-MTAB-45525 P-MTAB-45526 P-MTAB-45527 P-MTAB-45528 P-MTAB-45529 P-MTAB-45530 Protocol Type growth protocol treatment protocol nucleic acid extraction protocol nucleic acid labeling protocol nucleic acid hybridization to array protocol array scanning and feature extraction protocol normalization data transformation protocol Protocol Term Source REF EFO EFO EFO EFO EFO EFO EFO Protocol Term Accession Number EFO_0003789 EFO_0003969 EFO_0002944 EFO_0003813 EFO_0003815 EFO_0003814 EFO_0003816 Protocol Description Freshly isolated CEFs were provided by the Institute of Animal Health, Compton, Berks, UK. Cells were seeded in T25 flasks (Greiner Bio One; 5.6 x 106 cells/flask) and cultured overnight in 5.5 ml 199 media (Gibco®, Invitrogen) supplemented with 8% heat-inactivated newborn calf serum (NBCS; Gibco®, Invitrogen), 10% tryptose phosphate broth (TPB; Sigma), 2% nystatin (Sigma) and 0.1% penicillin streptomycin (Gibco®, Invitrogen). Recombinant chicken IFNα was prepared as previously reported (Laidlaw et al, 2013) and was added in culture media to a final concentration of 1000 u/ml. Confluent cells were treated with chicken IFNα or mock treated and incubated for six hours before harvesting. Cells were stored at -80°C in RNAlater (Sigma) until RNA extraction. The experiment was repeated in triplicate with three different batches of CEFs. Total RNA was extracted from cells using an RNeasy kit (Qiagen) according to the manufacturer’s instructions. On-column DNA digestion was performed using RNase-free DNase (Qiagen) to remove contaminating genomic DNA. RNA samples were quantified using a Nanodrop Spectrophotometer (Thermo Scientific) and checked for quality using a 2100 Bioanalyzer (Agilent Technologies). All RNA samples had an RNA integrity number (RIN) ≥ 9.8. Biotinylated fragmented RNA was prepared for each sample using standard procedures in GeneChip ® 3´ IVT Express Kit Users manual. Array hybridisation was performed according to the manufacturer's instructions (Affymetrix). Labeled samples were hybridized to the GeneChip Chicken Genome Arrays (Affymetrix Inc.) in a GeneChip Hybridization Oven for 16 h at 45°C and 60 rpm in an Affymetrix Hybridization Oven 645. After washing and staining, the arrays were scanned with the Affymetrix GeneChip Scanner 3000 7G. Gene-level expression signal estimates were derived from CEL files generated from raw data using the multi-array analysis (RMA) algorithm implemented from the Affymetrix GeneChip Command Console Software Version 3.0.1. Data pre-processing and filtering was done using Partek software, v.6.6 and included: RMA background correction, quantile normalization across all chips in the experiment, log2 transformation, median polish summarization. Protocol Hardware Protocol Software Term Source Name ArrayExpress EFO Term Source File http://www.ebi.ac.uk/arrayexpress/ http://www.ebi.ac.uk/efo/ Term Source Version Comment[AEExperimentType] transcription profiling by array SDRF File E-MTAB-3711.sdrf.txt