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Sample GSM147895 Query DataSets for GSM147895
Status Public on Oct 26, 2007
Title Gene expression changes in human colorectal cell line HCT116 DICER Exon5 knockout cells
Sample type RNA
 
Channel 1
Source name Human colorectal HCT116 DICER Exon5 knockout cells
Organism Homo sapiens
Characteristics Human colorectal HCT116 DICER exon5 knockout cells
Biomaterial provider Dr. Bert Vogelstein
Treatment protocol There were no specific treatments for cells during growth.
Growth protocol Cells were grown in McCoy's 5A medium supplimented with 10% fetal bovine serum.
Extracted molecule total RNA
Extraction protocol RNA was isolated by using TriZol reagent followed by clean-up with RNeasy mini kit plus on-column DNease treatment.
Label Cy5
Label protocol Sample amplification and labeling procedures are carried out by using Low RNA Input Fluorescent Linear Amplification Kit (Agilent Technologies). ). 0.4 microgram of total RNA is reverse transcribed into first strand and second strand cDNA by MMLV-RT using an oligo dT primer (System Biosciences) that incorporates a T7 promoter sequence. The cDNA is then used as a template for in vitro transcription in the presence of T7 RNA polymerase and Cyanine labeled CTPs. The labeled cRNA is purified using RNeasy mini kit (Qiagen) and followed by quantification on both concentrations of cRNA and dye labeled. RNA spike-in controls (Agilent Technologies) are added to RNA samples before amplification and labeling according to manufacturer’s protocol.
 
Channel 2
Source name Human colorectal HCT116
Organism Homo sapiens
Characteristics Human colorectal HCT116 cells
Biomaterial provider Dr. Bert Vogelstein
Treatment protocol There were no specific treatments for cells during growth.
Growth protocol Cells were grown in McCoy's 5A medium supplimented with 10% fetal bovine serum.
Extracted molecule total RNA
Extraction protocol RNA was isolated by using TriZol reagent followed by clean-up with RNeasy mini kit plus on-column DNease treatment.
Label Cy3
Label protocol Sample amplification and labeling procedures are carried out by using Low RNA Input Fluorescent Linear Amplification Kit (Agilent Technologies). ). 0.4 microgram of total RNA is reverse transcribed into first strand and second strand cDNA by MMLV-RT using an oligo dT primer (System Biosciences) that incorporates a T7 promoter sequence. The cDNA is then used as a template for in vitro transcription in the presence of T7 RNA polymerase and Cyanine labeled CTPs. The labeled cRNA is purified using RNeasy mini kit (Qiagen) and followed by quantification on both concentrations of cRNA and dye labeled. RNA spike-in controls (Agilent Technologies) are added to RNA samples before amplification and labeling according to manufacturer’s protocol.
 
 
Hybridization protocol Fragmented targets are added an Oligo Microarray, assembled into a hybridization chamber (Agilent Technologies) and hybridized at 65ºC for 17 hours in a hybridization oven with rotation. Hybridized microarrays are washed and dried according to the Agilent microarray processing protocol.
Scan protocol Microarrays are scanned with Agilent G2565BA microarray scanner under default settings recommended by Agilent Technologies for expression microarrays with 100% PMT and 10 um resolutions.
Description None
Data processing Data are extracted using Feature Extraction Software v8.5 (Agilent Technologies) under default settings for expression microarrays with linear & lowess normalization.
VALUEs represent log10 (test/reference) ratios, after linear and loess normalization.
 
Submission date Dec 01, 2006
Last update date Apr 26, 2007
Contact name Wayne Yu
E-mail(s) wyu8@jhmi.edu
Phone (410)502-7970
Fax (410)955-8780
Organization name Johns Hopkins University
Department Cancer Center
Street address 417 N. Caroline St.
City Baltimore
State/province MD
ZIP/Postal code 21231
Country USA
 
Platform ID GPL1708
Series (1)
GSE6427 Gene expression changes in human colorectal cell line HCT116 DICER Exon5 knockout cells

Data table header descriptions
ID_REF FeatureNum column in data file read by Agilent Feature Extraction software V8.5
VALUE log10 Ratio of background subtracted Cy5 intensity to background subtracted Cy3 intensity after linear and loess normalization

Data table
ID_REF VALUE
1 0.037850384
2 0
3 -0.037601861
4 -0.067058687
5 -0.026759827
6 0.099977901
7 0.477459994
8 0.402756791
9 0.070015121
10 0.057027497
11 -0.258579417
12 0.101084569
13 0.190301068
14 0.430556481
15 0.257007757
16 0
17 -0.015523898
18 0.030648239
19 0.02668904
20 -0.010897944

Total number of rows: 43931

Table truncated, full table size 753 Kbytes.




Supplementary file Size Download File type/resource
GSM147895.txt.gz 11.7 Mb (ftp)(http) TXT

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