NCBI Logo
GEO Logo
   NCBI > GEO > Accession DisplayHelp Not logged in | LoginHelp
GEO help: Mouse over screen elements for information.
          Go
Sample GSM678045 Query DataSets for GSM678045
Status Public on Apr 19, 2011
Title Granulocyte nucleosome cores_1
Sample type SRA
 
Source name primary granulocytes (mostly neutrophils)
Organism Homo sapiens
Characteristics cell type: Granulocytes
Growth protocol Cells were obtained from donor buffy coat and purified using sucrose gradient and Ig-beads
Extracted molecule genomic DNA
Extraction protocol The ends of isolated mononucleosome core DNAs (Granulocyte neutrophils) were processed by treating 0.3 ug - 0.5 ug of the DNA samples with T4 polynucleotide kinase (New England Biolabs) at 37oC for 2.5 hours followed by ethanol precipitation and subsequent treatment with T4 DNA polymerase (New England Biolabs) in the presence of dNTPs for 15 min at 12oC. After purification using either the QIAquick Gel Extraction Kit as described above or the QIAquick PCR Purification Kit (Qiagen), linkering of previously annealed duplexes AF-SJ-47 (5' OH-CCACTACGCCTCCGCTTTCCTCTCTATGGGCAGTCGGTGAT 3’) / AF-SJ-48 (5' Pi-ATCACCGACTGCCCATAGAGAGGAAAGCGGAGGCGTAGTGGTT 3’) and AF-SJ-49 (5' OH-CTGCCCCGGGTTCCTCATTCTCT 3’) / AF-SJ-50 (5' Pi-AGAGAATGAGGAACCCGGGGCAGTT 3’) to the samples was accomplished by T4 DNA ligase during a 6.5-hour room-temperature incubation. The ligation reactions were separated on a 2% agarose gel, and the relevant band isolated as described above. Amplification of the linkered libraries was accomplished with 8 (granulocyte mononucleosome library), 10 (CD4+ lymphocytes, CD8+ lymphocytes and genomic control libraries) or 12 (in vitro library) cycles of polymerase chair reaction (PCR) using primers AF-SJ-47 (SOLiD P1 primer) and AF-SJ-49 (SOLiD P2 primer) with subsequent separation and purification using a 2% agarose gel and the QIAquick Gel Extraction Kit as described above. The number of cycles used in the PCR amplification were monitored and selected as described in (Gu and Fire Chromosoma 2009).
 
Library strategy ChIP-Seq
Library source genomic
Library selection ChIP
Instrument model AB SOLiD System 2.0
 
Description Gran_TC_cores_1
Nucleosome-bound DNA isolated by micrococcal-treatment of chromatin, followed by gel purification
Data processing All sequence reads were aligned using SOLiD pipeline to human hg18 reference genome using the first 25 bps and allowing for up to two mismatches. RNA-Seq data was processed using custom scripts to obtain RPKM values for each gene isoform based on hg19 RefSeq annotation.
 
Submission date Feb 20, 2011
Last update date May 15, 2019
Contact name Anton Valouev
Organization name Stanford University
Department Pathology
Lab Sidow Lab
Street address 300 Pasteur Dr.
City Stanford
State/province CA
ZIP/Postal code 94035
Country USA
 
Platform ID GPL9138
Series (1)
GSE25133 Determinants of nucleosome organization in primary human cells
Relations
SRA SRX046670
BioSample SAMN00217090

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

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