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Sample GSM449684 Query DataSets for GSM449684
Status Public on Nov 13, 2009
Title Aerobic vs anaerobic experiment 2, replicate 1
Sample type RNA
 
Channel 1
Source name RNA from whole bacteria
Organism Porphyromonas gingivalis
Characteristics cell type: bacteria
strain: W83
Growth protocol Bacterial cells were grown in the presence of 6% oxygen.
Extracted molecule total RNA
Extraction protocol Total RNA extracted using Qiagen kit following manufacturer's instructions
Label Cy5
Label protocol 10 µg of total RNA were primed with random DNA primer at 70°C for 10 min, then reversed transcribed at 42°C for 1 h in the presence of ArrayScript reverse transcriptase (Applied Biosystems/Ambion, Austin, TX). Dyes were incorporated into the reverse transcribed cDNAs (Cy3 and Cy5, GE Healthcare).
 
Channel 2
Source name Total RNA from pooled whole bacteria
Organism Porphyromonas gingivalis
Characteristics strain: W83
age: log phase
cell type: bacteria
Growth protocol Bacterial cells were grown anaerobically.
Extracted molecule total RNA
Extraction protocol Total RNA extracted using Qiagen kit following manufacturer's instructions
Label Cy3
Label protocol 10 µg of total RNA were primed with random DNA primer at 70°C for 10 min, then reversed transcribed at 42°C for 1 h in the presence of ArrayScript reverse transcriptase (Applied Biosystems/Ambion, Austin, TX). Dyes were incorporated into the reverse transcribed cDNAs (Cy3 and Cy5, GE Healthcare).
 
 
Hybridization protocol Labeled cDNA probes were combined and mixed with hybridization buffer and applied to prehybridized array. Array was placed in hybridization chamber and incubated ON at 42C.
Scan protocol Scanned on an Axon 4200A microarray scanner.
Images were quantified using GenePix software (v 6.0).
Description Biological replicate 2 of 3. Technical replicate 1.
Data processing Normalized, background subtracted data obtained from log2 of processed Red signal/processed Green signal. LIMMA was used. LIMMA ( Linear Models for Microarray Data) package for statistical inference. LIMMA includes pre-processing capabilities for two-colour spotted arrays such as normalization of cDNA data, and background subtraction.Data were analyzed for significant differences using the Significance Analysis for Oral Pathogen Microarrays (SAOPMD). SAOPMD combines all the repeats within and between arrays and generates statistics. Data included were derived from five microarrays.
 
Submission date Sep 03, 2009
Last update date Nov 13, 2009
Contact name Janina P Lewis
E-mail(s) jplewis@vcu.edu
Phone 804-628-7014
Organization name Virginia Commonwealth University
Department Philips Institute of OCMB
Lab Lewis
Street address 521 North 11th Street
City Richmond
State/province VA
ZIP/Postal code 23298
Country USA
 
Platform ID GPL9149
Series (1)
GSE17960 Aerobic transcriptome of Porphyromonas gingivalis

Data table header descriptions
ID_REF
VALUE normalized log ratio (Cy5/Cy3) representing aerobic/anaerobic conditions

Data table
ID_REF VALUE
PG0001 -0.246536
PG0002 0.280943
PG0003 0.359372
PG0004 -0.810033
PG0005 -0.069198
PG0006 0.190401
PG0007 -0.284421
PG0010 0.895680
PG0011 0.374399
PG0012 -0.028142
PG0013 0.058263
PG0014 0.112568
PG0016 -0.531999
PG0017 0.353875
PG0018 -0.214596
PG0020 0.086485
PG0021 -0.428148
PG0022 0.239472
PG0024 -0.468077
PG0025 0.063405

Total number of rows: 1902

Table truncated, full table size 30 Kbytes.




Supplementary file Size Download File type/resource
GSM449684.gpr.gz 1.4 Mb (ftp)(http) GPR
Processed data included within Sample table

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