NCBI Logo
GEO Logo
   NCBI > GEO > Accession DisplayHelp Not logged in | LoginHelp
GEO help: Mouse over screen elements for information.
          Go
Sample GSM862026 Query DataSets for GSM862026
Status Public on Dec 31, 2014
Title GM12878 cells gDNA Nsp array
Sample type genomic
 
Source name GM12878 cells gDNA Nsp array
Organism Homo sapiens
Characteristics cell line: GM12878
sample type: genomic DNA
Biomaterial provider Coriell; http://ccr.coriell.org/Sections/Search/Search.aspx?PgId=165&q=GM12878
Treatment protocol Cells were grown to ~80% confluency and colleced after changing the media at -8hrs.
Growth protocol Cells were grown in RPMI medium 1640 supplemented with 2mM L-glutamine and 15% FBS.
Extracted molecule genomic DNA
Extraction protocol QIAGEN Blood and Cell Culture Midi kit isolated
Label biotin
Label protocol Affymetrix standard SNP array protocol
 
Hybridization protocol Affymetrix hybridization oven at 49C, 60rpm for 16 hrs. Wash and stain were performed on Affymetrix Fluidics Station 450
Scan protocol Genechips were scanned using an Affymetrix GeneChip Scanner 3000 and data was collected using Affymetrix AGCC software.
Description QIAGEN Blood and Cell Culture Midi kit isolated
Data processing Analyzing 250K Nsp and 250K Sty chip CEL files by Affymetrix Genotyping Console v4.1, we obtained the probe level intensity data for all match and mismatch probes. We applied quantile normalization to probe level ratios a=PMA/MMA and b=PMB/MMB. Then for each probeset or SNP, we computed the allelic intensities A=max(mean(log2(a)), 0) for allele A and B=max(mean(log2(b)), 0) for allele B based on the normalized ratios a and b. Finally, we obtained the total intensity A+B for each SNP on the 250K Nsp chips and the 250K Sty chips. The intensity data from two kind of chips were combined into one file.
The AplusB8GMs3types.ns.txt matrix file contains the total intensity data. It has 25 columns and 500568 rows. The Affymetrix SNP ids are in the first column. The rest columns contain 3 assays for each of the 8 CEPH samples.
 
Submission date Jan 13, 2012
Last update date Dec 31, 2014
Contact name Howard Yang
E-mail(s) yanghow@mail.nih.gov
Phone 2402765257
Organization name NCI
Street address 9609 Medical Center Dr.
City Rockville
State/province MD
ZIP/Postal code 20850
Country USA
 
Platform ID GPL3718
Series (1)
GSE35099 Allele specific RNA polymerase occupancy and gene expression analysis for 8 CEPH lymphoblastoid cell lines.

Supplementary file Size Download File type/resource
GSM862026_GM12878_gDNA_Nsp.CEL.gz 23.2 Mb (ftp)(http) CEL
Processed data are available on Series record

| NLM | NIH | GEO Help | Disclaimer | Accessibility |
NCBI Home NCBI Search NCBI SiteMap