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| Status |
Public on Dec 25, 2009 |
| Title |
PAO1_Pseudomonas aeruginosa PAO1 chromosome array |
| Sample type |
RNA |
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| Source name |
cDNA prepared from succinate culture of PAO1
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| Organism |
Pseudomonas aeruginosa PAO1 |
| Characteristics |
strain: PAO1
carbon source: succinate
growth phase: exponential
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| Growth protocol |
100 ml of NMM-4 (Miyakoshi et al. Transcriptome analysis of Pseudomonas putida KT2440 harboring the completely sequenced IncP-7 plasmid pCAR1. J Bacteriol 2007 Oct;189(19):6849-60. PMID: 17675379) supplemented with 1.0 mg ml-1 sodium succinate or carbazole was inoculated by overnight culture in Luria broth to obtain initial optical densities at 600 nm (OD600) of 0.05. Cultures were incubated at 30˚C in a rotating shaker at 120 rpm to exponential phase.
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| Extracted molecule |
total RNA |
| Extraction protocol |
Total RNA was extracted using NucleoSpin RNA II (Macherey-Nagel GmbH & Co. KG, Düren, Germany). The eluted RNA was treated with RQ1 RNase-free DNase (Promega, Madison, WI) at 37˚C for 30 min. After inactivation of DNase by the addition of the provided stop reagent and subsequent incubation at 65˚C for 10 min, total RNA was repurified using NucleoSpin RNA Clean-up (Macherey-Nagel).
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| Label |
biotin
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| Label protocol |
Single-strand cDNA was synthesized in 60 µl of 1× First Strand Buffer (Invitrogen, Carlsbad, CA) containing 12 µg of total RNA, 750 ng of random primers (Invitrogen), 1500 units of SuperScript II (Invitrogen), 60 units of RNaseOUT (Invitrogen), 10 mM DTT (Invitrogen), 0.5 mM dATP, 0.5 mM dCTP, 0.5 mM dGTP, 0.4 mM dTTP, and 0.1 mM dUTP (Roche Applied Science, Mannheim, Germany). After the RNA and random primers were denatured at 70˚C for 10 min and annealed at 25˚C for 10 min, the remaining reagents were added, and the reaction mixture was then incubated at 25˚C for 10 min, 37˚C for 60 min, 42˚C for 60 min, and 70˚C for 10 min. After cDNA synthesis, template RNA was degraded with one-third volume of 1N NaOH at 65˚C for 30 min; one-third volume of 1N HCl was added to neutralize the reaction mixture before cleanup. The cDNA was purified using a QIAquick PCR Purification Kit (Qiagen). The cDNA was fragmented and labeled using GeneChip WT Double-Stranded DNA Terminal Labeling Kit (Affymetrix). The purified single-stranded cDNA (~5 µg) was fragmented in 48 µl of 1× cDNA Fragmentation Buffer containing 15 units of Uracil DNA Glycosylase (UDG) and 225 units of Apurinic/apyrimidinic Endonuclease 1 (APE1) at 37˚C for 60 min, and incubated at 93˚C for 2 min. The fragmented cDNA was labeled in 60 µl of 1× TdT Buffer containing 60 units of Terminal Deoxynucleotidyl Transferase (TdT) and 0.083 mM GeneChip DNA Labeling Reagent at 37˚C for 60 min, and incubated at 70˚C for 2 min.
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| Hybridization protocol |
Labeled cDNA was mixed with 50 pM control oligonucleotide B2 (Affymetrix), 1× Hybridization Mix (Affymetrix), and 7% DMSO in a total volume of 200 µl and denatured at 95˚C for 5 min. Per array, 200 µl of the hybridization cocktail was hybridized at 50˚C for 16 h with a rotation rate of 60 rpm using a GeneChip Hybridization Oven 640 (Affymetrix). Chips were washed and stained using a Hybridization, Wash, and Stain Kit (Affymetrix) according to the the modified FleX450-0005 protocol (for chromosomal tiling array, changed temperature of ‘the Post Hyb Wash #2” to 50˚C) of GeneChip Fluidics station 450 (Affymetrix).
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| Scan protocol |
Arrays were scanned on an Affymetrix Scanner 3000 7G
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| Description |
RNA mapping on PAO1 chromosome
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| Data processing |
The CEL files were generated using Affymetrix GCOS. Data was quantile normalized and analyzed with Affymetrix Tiling Analysis Software v1.1, which uses non-parametric quantile normalization and a Hodges-Lehmann estimator for fold enrichment.The intensities were linearly scaled so that the median was 100. The replications of CEL files were together converted into the BAR files using PAO1b520519FF-3.bpmap for the forward strand and PAO1b520519FR-3.bpmap for the reverse strand; the BAR files with F indicate the forward strand and with R indicate the reverse strand of KT2440 chromosome. Bandwidth: 30, Threshold: 0, MaxGap: 30, MinRun, 30.
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| Submission date |
Mar 13, 2009 |
| Last update date |
Nov 15, 2009 |
| Contact name |
Hideaki Nojiri |
| E-mail(s) |
anojiri@mail.ecc.u-tokyo.ac.jp
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| Phone |
+81-3-5841-3067
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| Organization name |
The University of Tokyo
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| Department |
Biotechnology Research Center
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| Lab |
Laboratory of Environmental Biochemistry
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| Street address |
1-1-1 Yayoi, Bunkyo-ku
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| City |
Tokyo |
| ZIP/Postal code |
113-8657 |
| Country |
Japan |
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| Platform ID |
GPL8297 |
| Series (1) |
| GSE15217 |
Response of the Pseudomonas host chromosomal transcriptome to carriage of the IncP-7 plasmid pCAR1. |
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| Supplementary file |
Size |
Download |
File type/resource |
| GSM380027_070714_PAO1_1.CEL.gz |
10.2 Mb |
(ftp)(http) |
CEL |
| GSM380027_070718_PAO1_1.CEL.gz |
9.9 Mb |
(ftp)(http) |
CEL |
| GSM380027_PAO1_F_signal.bar.gz |
2.8 Mb |
(ftp)(http) |
BAR |
| GSM380027_PAO1_R_signal.bar.gz |
2.8 Mb |
(ftp)(http) |
BAR |
| Processed data included within Sample table |
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