|
Status |
Public on Mar 06, 2006 |
Title |
EC18n180 RpoH 10 min Time course 1 |
Sample type |
RNA |
|
|
Channel 1 |
Source name |
Wild type control (10 min)
|
Organism |
Escherichia coli |
Characteristics |
MG1655 PhtpG::lacZ delta lacX74/ptrc99A (control vector)
|
Treatment protocol |
At OD450 = 0.3, cultures induced with 1 mM IPTG. Cells harvested 10 min after induction
|
Growth protocol |
M9 minimal complete media, cultures grown aerobically at 30 degrees C in a gyratory water bath shaking at 240 rpm
|
Extracted molecule |
total RNA |
Extraction protocol |
Culture samples for microarray analysis were added to ice-cold 5% water-saturated phenol in ethanol solution, centrifuged at 6,600 g and the cell pellets flash frozen in liquid N2 before storing at -80 degrees C until required. Total RNA was isolated from the stored cell pellets using the hot phenol method, and labeled Cy3 and Cy5 cDNA was prepared from 16 ug total RNA with 10 ug random hexamer (Integrated DNA Technologies, Inc., Coralville, IA, USA).
|
Label |
Cy3
|
Label protocol |
Indirect labeling method as described in Khodursky et al (2003; Methods Mol Biol 224:61-78)
|
|
|
Channel 2 |
Source name |
RpoH induced (10 min)
|
Organism |
Escherichia coli |
Characteristics |
MG1655 PhtpG::lacZ delta lacX74/pTG2 (vector carrying inducible Ptrc::rpoH)
|
Treatment protocol |
At OD450 = 0.3, cultures induced with 1 mM IPTG. Cells harvested 10 min after induction
|
Growth protocol |
M9 minimal complete media, cultures grown aerobically at 30 degrees C in a gyratory water bath shaking at 240 rpm
|
Extracted molecule |
total RNA |
Extraction protocol |
Culture samples for microarray analysis were added to ice-cold 5% water-saturated phenol in ethanol solution, centrifuged at 6,600 g and the cell pellets flash frozen in liquid N2 before storing at -80 degrees C until required. Total RNA was isolated from the stored cell pellets using the hot phenol method, and labeled Cy3 and Cy5 cDNA was prepared from 16 ug total RNA with 10 ug random hexamer (Integrated DNA Technologies, Inc., Coralville, IA, USA).
|
Label |
Cy5
|
Label protocol |
Indirect labeling method as described in Khodursky et al (2003; Methods Mol Biol 224:61-78)
|
|
|
|
Hybridization protocol |
cDNA from 16 ug total RNA, 15 ug poly(dI-dC), 3xSSC, 25 mM Hepes (pH7), 0.225% SDS. Samples hybridized on array under a lifterslip for 12 hrs at 65 degrees C
|
Scan protocol |
Slides scanned using GenePix 4000B scanner (Axon). TIFF images analyzed using GENEPIX 3.0 software (Axon).
|
Description |
Wild type vs RpoH (Sigma 32) 10 min after overexpression
|
Data processing |
Data filtered for PCR success, >3x local background and spot quality (GenePix Flag). Normalized using Lowess smoothing from MA plot
|
|
|
Submission date |
Mar 01, 2006 |
Last update date |
Dec 06, 2006 |
Contact name |
Virgil Arthur Rhodius |
E-mail(s) |
[email protected]
|
Phone |
1 415 476 1493
|
URL |
http://www.ucsf.edu/gross
|
Organization name |
UCSF
|
Department |
Microbiology and Immunology
|
Lab |
Gross
|
Street address |
Genentech Hall, 600 16th Street
|
City |
San Francisco |
State/province |
CA |
ZIP/Postal code |
94158-2517 |
Country |
USA |
|
|
Platform ID |
GPL3500 |
Series (1) |
GSE4321 |
Time course analysis of genes regulated by E. coli sigma 32 (rpoH) after overexpression |
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