NCBI Logo
GEO Logo
   NCBI > GEO > Accession DisplayHelp Not logged in | LoginHelp
GEO help: Mouse over screen elements for information.
          Go
Sample GSM155352 Query DataSets for GSM155352
Status Public on Apr 01, 2007
Title Rapid speed under phosphate limitation vs. slow speed under phosphate limitation slide 3000070023B rep 1
Sample type RNA
 
Channel 1
Source name Total RNA from Methanococcus maripaludis grown with 0.15 mM phosphate at 0.19 per hour dilution rate
Organism Methanococcus maripaludis
Characteristics grown at rapid speed under phosphate limitation
Growth protocol cells were grown in chemostats in McCas media with 0.15 mM phosphate at 0.19 per hour dilution rate
Extracted molecule total RNA
Extraction protocol Qiagen RNeasy
Label Cy5
Label protocol A variation of aminoallyl cDNA labeling (Ambion), 5-10 ug of total RNA was incubated with 4 ug of random decamers at 75 C for 7 min, reverse transcibed in the presence of 0.15mM aminoallyl UTP for 2 hours at 42 C,the RNA hydrolyzed by NaOH at 65 C for 15 min, neutralized with HEPES, percipitated and resuspended in coupling buffer, NHS-Cy5 was used to couple Cy5 to the aminoallyl UTP, and the reaction cleaned up with minelute columns
 
Channel 2
Source name Total RNA from Methanococcus maripaludis grown with 0.15 mM phosphate at 0.042 per hour dilution rate
Organism Methanococcus maripaludis
Characteristics grown at slow speed under phosphate limitation
Growth protocol cells were grown in chemostats in McCas media with 0.15 mM phosphate at 0.042 per hour dilution rate
Extracted molecule total RNA
Extraction protocol Qiagen RNeasy
Label Cy3
Label protocol A variation of aminoallyl cDNA labeling (Ambion), 5-10 ug of total RNA was incubated with 4 ug of random decamers at 75 C for 7 min, reverse transcibed in the presence of 0.15mM aminoallyl UTP for 2 hours at 42 C,the RNA hydrolyzed by NaOH at 65 C for 15 min, neutralized with HEPES, percipitated and resuspended in coupling buffer, NHS-Cy3 was used to couple Cy3 to the aminoallyl UTP, and the reaction cleaned up with minelute columns
 
 
Hybridization protocol 100-120 pmol of Cy3 and Cy5 labeled cDNA where mixed, dried, resuspended in hybridization buffer (Agilent), boiled 3 min, 30 sec on ice, placed on the slide, covered with a coverslip and incubated at 42 C for 14-16 hours in the dark. Slides where washed in 1xSSC + 0.2% SDS then 0.1xSSC + 0.2% SDS at 54 C, washed with 0.1xSSC at room temp then rinsed with water and dried under nitrogen gas.
Scan protocol Scanned on a Perkin-Elmer Scan-Array Express
Images where quantified using TIGR spotfinder
Description Biological replicate 1 of 3. Cultures grown at rapid speed where compared to those under slow growth, both under phosphate limitation
Data processing Background subtraction followed by LOESS normalization using S+ array analyzer
 
Submission date Jan 15, 2007
Last update date Jan 16, 2007
Contact name John Leigh
Organization name University of Washington
Department Microbiology
Lab Leigh Lab
Street address Box 357242
City Seattle
State/province WA
ZIP/Postal code 98195
Country USA
 
Platform ID GPL2509
Series (1)
GSE6747 Methanococcus maripaludis response to hydrogen limitation

Data table header descriptions
ID_REF
Cy3 background subtracted Cy3
Cy5 background subtracted Cy5
VALUE Normalized log (Cy3 signal/Cy5 signal) base 2

Data table
ID_REF Cy3 Cy5 VALUE
1 426882 813266 0.62183714
2 873647 1026433 -0.061433174
3 400640 1130358 1.188468184
4 178696 253658 0.366467078
5 1590328 3640216 1.070744672
6 732071 1434171 0.685622823
7 312732 442448 0.252568114
8 69149 0 null
9 256802 311861 0.069383513
10 868513 779895 -0.462359122
11 435864 814993 0.594408653
12 171296 181631 0.010884791
13 867474 2823967 1.478374794
14 1484630 2828588 0.766609764
15 217223 377647 0.584446105
16 3277539 2858346 -0.251774079
17 2196178 2854735 0.265170597
18 882699 1318667 0.300956169
19 348567 434614 0.064935824
20 358747 469397 0.127673894

Total number of rows: 2304

Table truncated, full table size 62 Kbytes.




Supplementary data files not provided

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