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Sample GSM740017 Query DataSets for GSM740017
Status Public on Jun 13, 2011
Title ERP2 CopyNumber
Sample type genomic
Source name ERP2 SNP6.0 assay
Organism Homo sapiens
Characteristics cell line: ERP2
cell type: primary breast cancer
histology: invasive ductal carcinoma
estrogen receptor status: positive
erbb2 status: not amplified
Extracted molecule genomic DNA
Extraction protocol Genomic DNA was extracted from the cell lines and human tumor tissue with the QIAamp DNA Micro kit (QIAGEN) per manufacturer’s protocol. The genomic DNA used to analyze copy number alterations on the SNP6.0 arrays was processed per manufacterer's instructions. The GAPF assay was performed with 50% formamide as described (Diede et al. 2010a). Two micrograms of genomic DNA from cells were split evenly and digested with 10 U of SbfI, KpnI or PmeI (NEB) for at least eight hours at 37°C in a volume of 20 μL. The restriction enzymes were heat inactivated by incubation at 65°C for 20 minutes. The digests were then combined into one tube. To the mixture was added 3 μL of 3 M NaCl (final concentration of 100 mM), 45 μL of formamide (final concentration of 50%), and 2 μL of water. This mixture was heated to 99°C in a thermocycler for 7 minutes to denature the DNA, and then rapidly cooled in a ice-water bath for 3 minutes leading to the formation of “snap-back” DNA. S1 digestion was performed by adding 100 U of S1 nuclease (2 μL of 100 U/μL solution; Invitrogen), 12 μL of 10x S1 nuclease buffer, and 8 μL of 3 M NaCl. The sample was incubated at 37°C for 60 minutes. S1 nuclease was extracted with phenol:chloroform, and the DNA was ethanol precipitated in the presence of 20 ug glycogen. The DNA pellet was resuspended in 80 μL of 1/10 TE. The DNA was split equally between two tubes and digested with 40 U of MseI (NEB) or 40 U of MspI (NEB) for at least 8 hours at 37°C in a reaction volume of 50 μL. The restriction enzymes were heat inactivated by incubation at 65°C for 20 minutes. For the ligation-mediated PCR, linkers were generated by creating a 100 pM equimolar solution of each linker oligo in 10 mM TE supplemented with NaCl for a final salt concentration of 100 mM. This solution was incubated in a boiling water bath for 7 minutes and then allowed to cool to 25°C to permit annealing. Linkers were recovered by ethanol precipitation and resuspended in 500 μL of water. The linkers were ligated to the MseI- or MspI-digested DNA by adding 5 μL of appropriate linker, 10x T4 DNA ligase buffer, water and 400 U of T4 DNA ligase (NEB) in a 50 μL reaction volume. This reaction was incubated at 16°C for at least 8 hoursm, and the ligase was heat inactivated at 65°C for 10 minutes. Free linkers were removed using a YM-50 spin column (Microcon) by adding the ligation reaction and 160 μL of 1/10 TE to the column and spinning at 12,000xg for 5 minutes or until the membrane is almost dry. The sample was recovered by adding 20 μL of 1/10 TE to the membrane, incubating at room temperature for 5 minutes, and spinning at 1000xg for 3 minutes per manufacturer’s instructions. The PCR was performed with the FastStart High Fidelity PCR System (Roche) with the following reaction reagents: 4 μL of linker-ligated DNA, 10 μL of 10x FastStart PCR buffer, 10 μL of 2mM dNTPs, 12 μL of 10 pM linker-specific primer, 20 μL of 5x GC-rich solution, 1 μL of FastStart Taq Polymerase, and 43 μL of water. The PCR conditions were as follows: 96°C for 6 minutes; 30 cycles of 96°C for 30 seconds, 55°C for 30 seconds, and 72°C for 30 seconds; 72°C for 7 minutes. Three microliters of the PCR product were run on a 1.5% agarose gel for quality control. The products shoμLd range from 200 bp to 600 bp. The MseI and MspI PCR products were combined and concentrated in a YM-30 spin column (Microcon). The combined PCR products (~200 μL) and 300 μL of 1/10 TE were added to the membrane and spun at 14,000xg 40 to 60 minutes, checking every 15 minutes until the volume is approximately 25 μL. The DNA was recovered per manufacturer’s instruction. The DNA was quantitated using the NanoDrop system (Thermo Scientific).
Label biotin
Label protocol Seven and a half micrograms of DNA were fragmented using 0.016 U of DNaseI (NEB) and 10x DNaseI buffer in a 50 μL reaction. The reaction was incubated at 37°C for 25 minutes followed by heat inactivation at 95°C for 15 minutes. The fragmented samples were enzymatically biotinylated using the GeneChip WT Double-Stranded DNA Terminal Labeling Kit (Affymetrix) per manufacturer’s protocol.
Hybridization protocol Seven and a half micrograms of biotin-labeled DNA was hybridized to the appropriate Affymetrix Human Tiling 2.0R Array for 16 hours at 45°C at 60 rpm in an Affymetrix hybridization oven per manufacturer’s protocol.
Scan protocol The arrays were scanned on an Affymetrix Scanner 3700 7G.
Description ERP2 Copy Number profile, SNP6.0
Data processing Affymetrix Human Tiling 2.0R Arrays were analyzed using Tiling Array Software (v 1.1.02 Affymetrix). Probe locations were mapped using the NCBI36/hg18 genome build from March 2006. Raw-intensity data were scaled to a target intensity of 100 and normalized by quantile normalization. Normalized probe intensities were analyzed by Wilcoxon rank sum one-sided test, detecting probes with intensities significantly different between the cancer and normal reference samples. The probe analysis for determining signal ratios and p-values was performed using a bandwidth of 500 bp. and files were generated using the Tiling Array Software (Affymetrix) as described in the data processing protocol. The files contain -10log10 pvalues calculated form a Wilcoxon one-sided test. The files contain Log2 signal intensity (test/control).
Submission date Jun 09, 2011
Last update date Jun 13, 2011
Contact name Jamie Guenthoer
Organization name Fred Hutchinson Cancer Research Center
Department Human Biology
Street address 1100 Fairview Ave N
City Seattle
State/province WA
ZIP/Postal code 98109
Country USA
Platform ID GPL6801
Series (1)
GSE29876 Assessment of palindromes as platforms for DNA amplification in breast cancer

Data table header descriptions

Data table
CN_473963 3.000000 1 51586 0.402636 2.898076 nan nan
CN_473964 3.000000 1 51659 0.049073 2.898317 nan nan
CN_473965 3.000000 1 51674 -0.002206 2.898366 nan nan
CN_473981 3.000000 1 52771 -0.150678 2.902002 nan nan
CN_473982 3.000000 1 52788 0.381132 2.902059 nan nan
CN_497981 3.000000 1 62627 0.278990 2.935327 nan nan
CN_502615 3.000000 1 75787 0.079156 2.981578 nan nan
CN_502613 3.000000 1 75849 0.381480 2.981801 nan nan
CN_502614 3.000000 1 76175 0.704931 2.982971 nan nan
CN_502616 3.000000 1 76192 0.574228 2.983032 nan nan
CN_502843 3.000000 1 88453 0.725506 3.027811 nan nan
CN_466171 3.000000 1 218557 0.810151 3.046148 nan nan
CN_468414 3.000000 1 218926 0.264521 3.046006 nan nan
CN_468412 3.000000 1 219009 0.342106 3.045974 nan nan
CN_468413 3.000000 1 219024 0.223466 3.045968 nan nan
CN_470565 3.000000 1 219470 0.274816 3.045796 nan nan
CN_468424 3.000000 1 225521 0.206509 3.043462 nan nan
CN_468425 3.000000 1 225579 0.229659 3.043439 nan nan
CN_460512 3.000000 1 346294 -0.010541 2.764919 nan nan
CN_460513 3.000000 1 346393 0.527631 2.764921 nan nan

Total number of rows: 1813441

Table truncated, full table size 114303 Kbytes.

Supplementary file Size Download File type/resource
GSM740017_ERP2_CGH.CEL.gz 29.6 Mb (ftp)(http) CEL
GSM740017_ERP2_CGH.CNCHP.gz 34.8 Mb (ftp)(http) CNCHP
Processed data provided as supplementary file
Processed data included within Sample table

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