NCBI Logo
GEO Logo
   NCBI > GEO > Accession DisplayHelp Not logged in | LoginHelp
GEO help: Mouse over screen elements for information.
          Go
Sample GSM2670869 Query DataSets for GSM2670869
Status Public on Jan 12, 2018
Title SUM44_wt_repl2
Sample type SRA
 
Source name breast cancer cell line
Organism Homo sapiens
Characteristics tissue: breast cancer cell line
biomaterial provider: ATCC
cell line: SUM44
estrogen: Yes
antibody: ESR1 (Santa-Cruz sc543)
esr1 mutation: None
Treatment protocol LTED cells modeling resistance to an AI were derived from long-term culture in the presence of RPMI1640 medium containing 10% dextran charcoal stripped serum (DCC)
Growth protocol cultured in phenol red-free RPMI1640 medium supplemented with 10% FBS and 1 nmol/L estradiol (E2)
Extracted molecule genomic DNA
Extraction protocol Cells were crosslinked in 1% formaldehyde at room temperature for 10 minutes and then quenched with 125 mmol/L glycine. Samples were then lysed, sonicated, and chromatin was immunoprecipitated by overnight incubation at 4C with ER antibodies prebound with Protein G magnetic dynabeads (Invitrogen). Samples were then washed vigorously with RIPA buffer and reversed crosslinked by an overnight incubation in elution buffer at 65C. DNA was digested with RNase and Proteinase K, purify precipitated with phenol chloroform and eluted in Tris-HCl pH 8.0.
 
Library strategy ChIP-Seq
Library source genomic
Library selection ChIP
Instrument model Illumina NextSeq 500
 
Description ChIP SUM44 ESR1 wildtype
Data processing Reads were aligned to the Human Reference Genome (assembly hg19) using BWA and removing all reads with a quality score <15
Peaks were called using MACS2 (v2.1.0.20150420) 32 with default parameters
Genome_build: Human Reference Genome (assembly hg19)
Supplementary_files_format_and_content: MACS2 excel file output files
 
Submission date Jun 15, 2017
Last update date May 15, 2019
Contact name Eugene Schuster
E-mail(s) [email protected]
Phone +442088082619
Organization name Institute of Cancer Research
Department Breast Cancer Research
Lab Endocrinology
Street address 123 Old Brompton Road
City London
ZIP/Postal code SW7 3RP
Country United Kingdom
 
Platform ID GPL18573
Series (2)
GSE100074 Discovery of naturally occurring ESR1 mutations during acquisition of resistance to endocrine therapy in widely used estrogen receptor positive breast cancer cell lines [ChIP-Seq]
GSE100076 Discovery of naturally occurring ESR1 mutations during acquisition of resistance to endocrine therapy in widely used estrogen receptor positive breast cancer cell lines
Relations
BioSample SAMN07247012
SRA SRX2922232

Supplementary file Size Download File type/resource
GSM2670869_SUM44_WT_repl2_MACS.xls.gz 1.7 Mb (ftp)(http) XLS
SRA Run SelectorHelp
Raw data are available in SRA
Processed data provided as supplementary file

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