Comment[ArrayExpressAccession] E-GEOD-44092 MAGE-TAB Version 1.1 Public Release Date 2013-02-14 Investigation Title Bisulfite-Seq profiling of undifferentiated ESCs, and in vitro derived primordial germ cells (iPGCs) Comment[Submitted Name] Bisulfite-Seq profiling of undifferentiated ESCs, and in vitro derived primordial germ cells (iPGCs) Experiment Description We report that in vitro derived PGCs undergo genome-wide DNA demethylation and that this demethylation does not require Tet1/Tet2 Examination of methylation in ESCs, iPGCs, and Tet2-/- iPGCs depleted of Tet1 by shRNA lentiviruses 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 Vincent Vincent Clark Person First Name John John Amander Person Mid Initials J T Person Email jvincent@ucla.edu Person Affiliation UCLA Person Address MCDB, UCLA, 621 Charles E Young Dr. S, Los Angeles, USA Person Roles submitter Protocol Name P-GSE44092-2 P-GSE44092-1 P-GSE44092-3 Protocol Description Genomic DNA was isolated via Zymo gDNA Mini Prep columns and subjected to sonication. Briefly, sonicated DNA was end repaired with T4/Klenow DNA polymerases and T4 polynucleotide kinase, adenylated, and ligated to pre-methylated single end Illumina Adapters with T4 DNA ligase. Following purification and size selection (150-300bp), samples were bisulfite converted with CpG Genome Kit (Millipore). Libraries were then subjected to one round of PCR amplification (15 cycles) ESCs were cultured under standard conditions in LIF on feeders. iPGCs were generated via ESC differentiation for 6 days following selection of SSEA1+/cKitbright cells by FACS. Indicated viruses were transduced into ESCs prior to embryoid body differentiation. BS-seq reads were aligned to the mm9 genome assembly using BS Seeker, allowing up to 10 mismatches. Alignments with three consecutive methylated non-CG sites are removed. If multiple alignments mapped to the same location only one is kept. Genome_build: mm9 Supplementary_files_format_and_content: Processed data (CGmap) is in text format. column 1=chromosome id (see mouse_mm9_chr_name_id.txt); column 2=C/G (G stands for C on the opposite strand); column 3= chromosomal location; column 4=sequence context (CG/CHG/CHH); column 5=sequence context (CA/CT/CC/CG); column 6=methylation fraction #C/(#C+#T); column 7=number of C (#C); column 8 #C+#T. Protocol Type nucleic acid library construction protocol grow feature_extraction Experimental Factor Name LENTIVIRUS CELL TYPE GENOTYPE Experimental Factor Type lentivirus cell type genotype Comment[SecondaryAccession] GSE44092 Comment[GEOReleaseDate] 2013-02-14 Comment[ArrayExpressSubmissionDate] 2013-02-05 Comment[GEOLastUpdateDate] 2013-03-08 Comment[AEExperimentType] methylation profiling by high throughput sequencing Comment[AdditionalFile:Data1] GSE44092_mouse_mm9_chr_name_id.txt Comment[SecondaryAccession] SRP018523 Comment[SequenceDataURI] http://www.ebi.ac.uk/ena/data/view/SRR688514-SRR688535 SDRF File E-GEOD-44092.sdrf.txt