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Sample GSM856498 Query DataSets for GSM856498
Status Public on Mar 28, 2012
Title oocytes-C57B6-4
Sample type SRA
 
Source name oocytes
Organism Mus musculus
Characteristics developmental stage: oocytes
strain: C57B6
Treatment protocol NoPB embryos were subjected to laser assisted polar body biopsy using an 8 mm piezo pipette in batches of 5 embryos in M2 medium microdrops (Millipore) under mineral oil and cultured to the described stage. ICM was isolated using rabbit anti mouse serum (Sigma Aldrich) and Guinea pig complement serum to ablate the outer trophectoderm of E3.5 blastocysts. E6.5 and E7.5 embryos were dissected from the implanted decidua in PBS.
Growth protocol Isolated embryos were cultured in C02 buffered KSOM medium supplemented with amino acids (Millipore) until isolation at a perscribed stage. Oocytes and embryos were isolated from gonadotropin primed females and sperm collected from the cauda epidinymis of recently mated male mice
Extracted molecule genomic DNA
Extraction protocol Reduced representation bisulfite libraries were prepared from Proteinase K treated, MspI digested DNA following ligation with methylated standard adapters, size selection, bisulfite conversion, and amplification of the final libraries
Reduced representation bisulfite sequencing libraries are designed to enrich for a consistent subset of CpGs in the genome using MspI digestion (C'CGG cutting), adapater ligation and bisulfite conversion to generate base resolution maps of cytosine methylation on a consistent genome scale
 
Library strategy Bisulfite-Seq
Library source genomic
Library selection Reduced Representation
Instrument model Illumina Genome Analyzer IIx
 
Description Msp1 digested bisulfite converted genomic DNA
Data processing oocytes-C57B6-4.cpgs.txt; genome build: mm9
Sequence reads were aligned to the Mouse Genome Build 37 (mm9) using a computational pipeline taking into account bisulfite conversion and the strain background. The methylation level of each sampled cytosine was estimated as the number of reads reporting a C, divided by the total number of reads reporting a C or T. The cpg files were joined and the positions were tiled to non-overlapping 100bp windows to produce the mousePMD100bpMe.txt file.
 
Submission date Jan 04, 2012
Last update date May 15, 2019
Contact name Michelle M Chan
Organization name UCSF
Lab Weissman Lab
Street address 1700 4th St.
City San Francisco
State/province CA
ZIP/Postal code 94158
Country USA
 
Platform ID GPL11002
Series (1)
GSE34864 A unique regulatory phase of DNA methylation in the early mammalian embryo
Relations
Reanalyzed by GSE38711
SRA SRX114134
BioSample SAMN00769774

Supplementary file Size Download File type/resource
GSM856498_oocytes-C57B6-4.cpgs.txt.gz 4.3 Mb (ftp)(http) TXT
SRA Run SelectorHelp
Raw data are available in SRA
Processed data provided as supplementary file
Processed data are available on Series record

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