Comment[ArrayExpressAccession] E-GEOD-39777 MAGE-TAB Version 1.1 Public Release Date 2013-03-28 Investigation Title Comparison of DNA methylation in human tissues Comment[Submitted Name] Comparison of DNA methylation in human tissues Experiment Description This SuperSeries is composed of the SubSeries listed below. Refer to individual Series 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 Schroeder Person First Name Diane Person Mid Initials Irene Person Email dischroed@ucdavis.edu Person Affiliation UC Davis Person Address UC Davis, 1 Shields Ave, Davis, CA, USA Person Roles submitter Protocol Name P-GSE39777-5 P-GSE39777-1 P-GSE39777-4 P-GSE39777-3 P-GSE39777-6 P-GSE39777-2 Protocol Description RNA was extracted using the NuGEN Ovation RNA-Seq System. Indexed adapters were added using the NuGEN Encore NGS Library System I. Tissue DNA was purified using Qiagen's Puregene kit. The genomic DNA was sonicated to ~300 bp and methylated Illumina adapters were ligated to the ends. 500 ng of library was bisulfite converted using Zymo's EZ DNA Methylation-Direct kit according to the manufacturer's instructions. The library was then amplified using 2.5 U PfuTurboCx Hotstart DNA Polymerase (Stratagene) for 14 cycles using Illumina's standard amplification protocol. Reads were aligned to the genome using BS Seeker. 76 bp reads were processed with BS Seeker parameters -e 75 -m 2. Custom Perl scripts were used to calculate percent methylation for each genomic CpG site with read coverage. Methylation data for both DNA strands were combined. Only one read starting at a given genomic coordinate was kept to eliminate clonal replicates. Red=80-100% methylation, green=60-80%, blue=1-60%, black=0% Genome_build: hg18 Supplementary_files_format_and_content: BED file with the name field giving the % methylation at that CpG site Reads were aligned to the genome using BS Seeker. 100 bp reads were trimmed at the 3' end to 75 bp for BS Seeker alignment. BS Seeker parameters: -e 75 -m 2. Custom Perl scripts were used to calculate percent methylation for each genomic CpG site with read coverage. Methylation data for both DNA strands were combined. Only one read starting at a given genomic coordinate was kept to eliminate clonal replicates. Red=80-100% methylation, green=60-80%, blue=1-60%, black=0% Genome_build: hg18 Supplementary_files_format_and_content: BED file with the name field giving the % methylation at that CpG site Sequencing index was in first 4 bases of sequencing read. For raw fastq files, first four bases were removed and separate fastq files were made for each indexed replicate. Reads were mapped to the hg18 version of the genome using TopHat (version 1). Parameters: --library-type fr-unstranded –GTF –butterfly-search –no-novel-juncs --prefilter-multihits Cufflinks was used to assemble the mapped reads into transcripts, omitting reads that did not align to known transcripts. Parameters: --library-type fr-unstranded – GTF –frag-bias-correct –multi-read-correct –frag-len-mean 390 –compatible-hits-norm Genome_build: hg18 Supplementary_files_format_and_content: fpkm_tracking file from Cufflinks Reads were aligned to the genome using BS Seeker. 100 bp reads were trimmed at the 3' end to 85 bp for BS Seeker alignment. BS Seeker parameters: -e 85 -m 3 -a adapter2. Custom Perl scripts were used to calculate percent methylation for each genomic CpG site with read coverage. Methylation data for both DNA strands were combined. Only one read starting at a given genomic coordinate was kept to eliminate clonal replicates. Red=80-100% methylation, green=60-80%, blue=1-60%, black=0% Genome_build: hg18 Supplementary_files_format_and_content: BED file with the name field giving the % methylation at that CpG site Protocol Type nucleic acid library construction protocol nucleic acid library construction protocol feature_extraction feature_extraction feature_extraction feature_extraction Experimental Factor Name ORGANISM PART Experimental Factor Type organism part Publication Title The human placenta methylome. Publication Author List Schroeder DI, Blair JD, Lott P, Yu HO, Hong D, Crary F, Ashwood P, Walker C, Korf I, Robinson WP, Lasalle JM PubMed ID 23530188 Publication DOI 10.1073/pnas.1215145110 Comment[SecondaryAccession] GSE39777 Comment[GEOReleaseDate] 2013-03-28 Comment[ArrayExpressSubmissionDate] 2012-07-31 Comment[GEOLastUpdateDate] 2013-04-04 Comment[AEExperimentType] methylation profiling by high throughput sequencing Comment[AEExperimentType] RNA-seq of coding RNA SDRF File E-GEOD-39777.sdrf.txt