NCBI Logo
GEO Logo
   NCBI > GEO > Accession DisplayHelp Not logged in | LoginHelp
GEO help: Mouse over screen elements for information.
          Go
Sample GSM820438 Query DataSets for GSM820438
Status Public on Oct 21, 2011
Title HeLa_odd
Sample type SRA
 
Source name HeLa
Organism Homo sapiens
Characteristics cell line: HeLa
cell type: HeLa S3 cells
lincrna probes: TERC
Growth protocol Drosophila cell line: 10% Heat-Inactivated FBS in Schneider medium (pen/strep). Human cell lines: 10% FBS in DMEM (pen/strep)
Extracted molecule genomic DNA
Extraction protocol Cells are crosslinked in 1% glutaraldehyde and lysates clarified by sonication. lincRNA:chromatin adducts are isolated using specific probes. Libraries were prepared according to Illumina's instructions accompanying the DNA Sample Kit (Part# 0801-0303). Briefly, DNA was end-repaired using a combination of T4 DNA polymerase, E. coli DNA Pol I large fragment (Klenow polymerase) and T4 polynucleotide kinase. The blunt, phosphorylated ends were treated with Klenow fragment (32 to 52 exo minus) and dATP to yield a protruding 3- 'A' base for ligation of Illumina's adapters which have a single 'T' base overhang at the 3’ end. After adapter ligation DNA was PCR amplified with Illumina primers for 15 cycles and library fragments of ~250 bp (insert plus adaptor and PCR primer sequences) were band isolated from an agarose gel. The purified DNA was captured on an Illumina flow cell for cluster generation. Libraries were sequenced on the Genome Analyzer following the manufacturer's protocols.
 
Library strategy ChIP-Seq
Library source genomic
Library selection ChIP
Instrument model Illumina Genome Analyzer II
 
Description ChIRP-seq of TERC from HeLa cells
Data processing Briefly, raw reads from "even" and "odd" in each samples were aligned using "Bowtie," and merged so that only signals common in both "even" and "odd" are retained (merge.wig files). These files were then converted into SAM formats for peaking calling by MACS. For complete methods please refer to the paper.
 
Submission date Oct 20, 2011
Last update date May 15, 2019
Contact name Kun Qu
E-mail(s) [email protected]
Organization name Stanford University
Department Dermatology
Lab Howard Chang
Street address 269 Campus Dr. CCSR 2150
City Stanford
State/province CA
ZIP/Postal code 94305
Country USA
 
Platform ID GPL9115
Series (1)
GSE31332 Genomic maps of lincRNA occupancy reveal principles of RNA-chromatin interactions.
Relations
SRA SRX101824
BioSample SAMN00740112

Supplementary data files not provided
SRA Run SelectorHelp
Processed data are available on Series record
Raw data are available in SRA

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