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Sample GSM155370 Query DataSets for GSM155370
Status Public on Apr 01, 2007
Title Rapid speed under phosphate limitation vs. slow speed under phosphate limitation slide 3000069787Blow rep 2
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 at a low gain setting
Images where quantified using TIGR spotfinder
Description Biological replicate 2 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 15170 18992 1.031711861
2 116447 73678 -0.662796704
3 41314 92440 1.231432695
4 4734 0 null
5 31806 5437 -1.689513567
6 48182 19092 -0.970169816
7 0 0 null
8 0 0 null
9 12745 0 null
10 73871 34627 -0.957763177
11 5561 7 -6.464086651
12 0 0 null
13 66660 199075 1.539096239
14 218857 452116 0.93535147
15 10566 5022 0.105973511
16 332715 251489 -0.519947656
17 198113 247711 0.204390733
18 34590 21596 -0.254505247
19 0 0 null
20 0 0 null

Total number of rows: 2304

Table truncated, full table size 52 Kbytes.




Supplementary data files not provided

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