NCBI Logo
GEO Logo
   NCBI > GEO > Accession DisplayHelp Not logged in | LoginHelp
GEO help: Mouse over screen elements for information.
          Go
Sample GSM1075040 Query DataSets for GSM1075040
Status Public on Feb 01, 2013
Title Solvent control, replicate 2
Sample type RNA
 
Source name Whole daphnia (20 daphnia/replicate)
Organism Daphnia magna
Characteristics agent: Solvent control
Treatment protocol U.S. EPA. 1996. OPPTS 850.1300 Daphnid Chronic Toxicity Test
Growth protocol U.S. EPA. 1996. OPPTS 850.1300 Daphnid Chronic Toxicity Test
Extracted molecule total RNA
Extraction protocol Qiagen Rneasy
Label Cy3
Label protocol Cyanine-3 (Cy3) labeled cRNA was prepared from 0.4 ug RNA using the One-Color Low RNA Input Linear Amplification PLUS kit (Agilent) according to the manufacturer's instructions, followed by RNAeasy column purification (QIAGEN, Valencia, CA). Dye incorporation and cRNA yield were checked with the NanoDrop ND-1000 Spectrophotometer.
 
Hybridization protocol 600 ng of Cy3-labelled cRNA (specific activity >9.0 pmol Cy3/ug cRNA) was fragmented at 60°C for 30 minutes in a reaction volume of 25 µl containing 1x Agilent fragmentation buffer and 2x Agilent blocking agent following the manufacturers instructions. On completion of the fragmentation reaction, 25 µl of 2x Agilent hybridization buffer was added to the fragmentation mixture and hybridized to the custom-designed Agilent test array for 17 hours at 65°C in a rotating Agilent hybridization oven. After hybridization, microarrays were washed 1 minute at room temperature with GE Wash Buffer 1 (Agilent), 1 minute with 37°C GE Wash buffer 2 (Agilent), 30 seconds with Acetonitrile, and dried with Agilent Stabilization and Drying Solution.
Scan protocol Slides were scanned immediately after washing on a GenePix 4200AL scanner at PMT gain level 420 using default setting (Scan resolution 5um, One channel-Green, Laser power 100%).
Data processing The scanned images were analyzed with GenePix Pro 6.1 (Molecular Devices, Sunnyvale, CA) using default parameters and Agilient-provided GEML grid file 023710_D_F_20090417.xml to obtain signal intensities. GeneSpring GX (Agilent Technologies) was used to normalize data by quantile normalizaton and baseline transformation to the median of all samples. Statistical analysis was also performed in GeneSpring utilizing data from all microarray probes and consisted of one-way ANOVA to test for significant differential expression of microarray targets.
 
Submission date Jan 31, 2013
Last update date Feb 01, 2013
Contact name Tanwir Habib
E-mail(s) thabib@sidra.org
Organization name Sidra Medicine
Street address Al Luqta Street
City Doha
ZIP/Postal code 26999
Country Qatar
 
Platform ID GPL16579
Series (1)
GSE43960 THE GOOD, THE BAD, AND THE TOXIC: DECIPHERING HORMESIS IN DAPHNIA MAGNA EXPOSED TO AN ENERGETIC COMPOUND

Data table header descriptions
ID_REF
VALUE Normalized signal intensity

Data table
ID_REF VALUE
GE_BrightCorner -0.0189991
DarkCorner -0.26622856
DM02261P1 -0.14280319
DM14626P1 0.29580784
DM03616P1 0.23608828
DM07320P4 0.53861046
DM10196P1 0.5456228
DM05301P3 -0.13358402
DM00464P1 0
DM05804P1 -0.11943817
DM02129P1 0.42822218
DM00526P2 -0.06147909
DM11441P1 0
DM10353P2 -0.29510975
DM07508P1 -0.7788069
DM14422P3 -0.19757414
DM05775P3 -0.52892876
DM09445P1 0.038514614
DM12969P1 -0.250381
DM02268P3 -0.25450945

Total number of rows: 14398

Table truncated, full table size 293 Kbytes.




Supplementary file Size Download File type/resource
GSM1075040_Hormesis_252371010099_2_4_SC_2.txt.gz 2.1 Mb (ftp)(http) TXT
Processed data included within Sample table

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