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SRX713899: GSM1515528: R1D567_Eth_ARv567es_rep3; Homo sapiens; ChIP-Seq
2 ILLUMINA (Illumina HiSeq 2000) runs: 23.4M spots, 1.2G bases, 743.2Mb downloads

Submitted by: Gene Expression Omnibus (GEO)
Study: Genome-wide analysis of full-length Androgen Receptor (AR) and AR Splice Variant (ARv567es) cistromes
show Abstracthide Abstract
Androgen Receptor (AR) variants (AR-V) drive prostate cancer (PCa) resistance to first and second-generation therapies targeting endocrine regulation of AR. To understand the sets of genomic targets of full-length AR vs. AR-Vs, we conducted genome-wide ChIP-seq using isogenic pairs of genome engineering cell lines expressing either ARv567es (R1-D567) or full-length AR (R1-AD1). Our data demonstrate that androgen-activated full-length AR and AR-Vs both bind to similar genomic targets, which are enriched for high affinity androgen response elements (AREs). Overall, this study demonstrates that AR-Vs restore the broad AR cistrome that is otherwise lost during endocrine-targeted therapy. Overall design: ChIP-Seq of full-length Androgen Receptor (AR) or AR splice variant (ARv567es) binding to genomic DNA
Sample: R1D567_Eth_ARv567es_rep3
SAMN03083552 • SRS711846 • All experiments • All runs
Organism: Homo sapiens
Library:
Instrument: Illumina HiSeq 2000
Strategy: ChIP-Seq
Source: GENOMIC
Selection: ChIP
Layout: SINGLE
Construction protocol: Chromatin immunoprecipitation (ChIP) was performed for three independent biological replicate experiments exactly as described (PMID: 21602788) with the exception fo the following modifications: R1-AD1 and R1-D567 cells (PMID 24101480) were seeded at 5x10^6 cells/plate on 10 cm plates in RMPI 1640 + 10% CSS, allowed to settle for 72h, then re-fed for 4h with RMPI 1640 + 5% CSS containing vehicle (ETH) or 1nM DHT prior to fixation. Nuclear pellets were sonicated on ice for 8 cycles at 40% amplitude using a 450 Sonifer (Branson). Each cycle consisted of 10 sec pulse/10 sec rests for 1 min, with 2 min rests between cycles. Lysates were immunoprecipitated with Protein A/G Plus agarose beads (Santa Cruz Biotechnology) pre-blocked with tRNA (Sigma). DNA was purified using a PCR purification kit (Qiagen). For ChIP-seq, 2-10ng of DNA (ChIP-enriched or input) was used for library creation with a TruSeq ChIP Sample Preparation Kit (Illumina cat #IP-202-1012) and sequenced at the Univeristy of Minnesota Genomics Center using an Illumina HiSeq2000 at 1X50bp. Libraries were prepared according to Illumina's instructions accompanying the TruSeq Sample Preparation Kit (Illumina cat#IP-202-1012).
Experiment attributes:
GEO Accession: GSM1515528
Links:
External link:
Runs: 2 runs, 23.4M spots, 1.2G bases, 743.2Mb
Run# of Spots# of BasesSizePublished
SRR158963511,697,739596.6M370.6Mb2015-03-13
SRR158963611,699,690596.7M372.7Mb2015-03-13

ID:
1005227

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