GEO DataSets

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Homo sapiens

Type:

Expression profiling by array

Platforms:

GPL4133 GPL9283

27 Samples

Download data: TXT

(Submitter supplied) Peripheral blood mononuclear cells (PBMCs) from 13 vasculitis patients expressed varying gene profiles.

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL9283

14 Samples

Download data: TXT

(Submitter supplied) Peripheral blood mononuclear cells (PBMCs) from 13 vasculitis patients expressed varying gene profiles.

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL4133

13 Samples

Download data: TXT

(Submitter supplied) Background: DNA microarrays provide a powerful method for global analysis of gene expression. The application of this technology to specific cell types and tissues, however, is typically limited by small amounts of available mRNA, thereby necessitating amplification. Here we compare microarray results obtained with two different methods of RNA amplification to profile gene expression in the C. elegans larval nervous system. more...

Organism:

Caenorhabditis elegans

Type:

Expression profiling by array

Platform:

GPL200

8 Samples

Download data: CEL, CHP

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Homo sapiens

Type:

Expression profiling by array; Expression profiling by high throughput sequencing; Expression profiling by RT-PCR

Platforms:

GPL17989 GPL570 GPL16288

64 Samples

Download data: CEL

(Submitter supplied) Accurate profiling of RNA expression of single cells is a valuable approach for broadening our understanding of cancer biology and mechanisms of dissemination, but requires the development of reliable methods for their molecular characterization. Here we evaluate a single cell methodology which generates microgram amounts of cDNA suitable for next generation sequencing (RNA-Seq), high throughput RT-qPCR and Affymetrix array analysis. more...

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL16288

10 Samples

Download data: XLSX

(Submitter supplied) Accurate profiling of RNA expression of single cells is a valuable approach for broadening our understanding of cancer biology and mechanisms of dissemination, but requires the development of reliable methods for their molecular characterization. Here we evaluate a single cell methodology which generates microgram amounts of cDNA suitable for next generation sequencing (RNA-Seq), high throughput RT-qPCR and Affymetrix array analysis. more...

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL16288

12 Samples

Download data: XLSX

(Submitter supplied) Accurate profiling of RNA expression of single cells is a valuable approach for broadening our understanding of cancer biology and mechanisms of dissemination, but requires the development of reliable methods for their molecular characterization. Here we evaluate a single cell methodology which generates microgram amounts of cDNA suitable for next generation sequencing (RNA-Seq), high throughput RT-qPCR and Affymetrix array analysis. more...

Organism:

Homo sapiens

Type:

Expression profiling by RT-PCR

Platform:

GPL17989

22 Samples

Download data: TXT

(Submitter supplied) Accurate profiling of RNA expression of single cells is a valuable approach for broadening our understanding of cancer biology and mechanisms of dissemination, but requires the development of reliable methods for their molecular characterization. Here we evaluate a single cell methodology which generates microgram amounts of cDNA suitable for next generation sequencing (RNA-Seq), high throughput RT-qPCR and Affymetrix array analysis. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

20 Samples

Download data: CEL

(Submitter supplied) Both spotted long oligonucleotide arrays and Affymetrix GeneChips were used to measure differential gene expression in two RNA samples (K562 erythroleukemia RNA and the Stratagene Universal Human Reference RNA). For Affymetrix technology, the two RNAs were analyzed separately. There are two replicates for K562 RNA (GSM4843 and GSM4844) and three for the Stratagene Universal reference (GSM4845-GSM4847). more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Datasets:

GDS222 GDS223

Platforms:

GPL273 GPL8300 GPL274

23 Samples

Download data: CEL

Part of a comparison of spotted long oligonucleotide arrays with in situ synthesized 25-mer arrays. Examination of amplified and unamplified K562 erythroleukemia RNA and Stratagene Universal Human Reference RNA.

Organism:

Homo sapiens

Type:

Expression profiling by array, transformed count, 2 cell type sets

Platform:

GPL8300

Series:

GSE344

5 Samples

Download data: CEL

Part of a comparison of spotted long oligonucleotide arrays with in situ synthesized 25-mer arrays. Examination of amplified and unamplified K562 erythroleukemia RNA and Stratagene Universal Human Reference RNA.

Organism:

Homo sapiens

Type:

Expression profiling by array, log ratio, 3 protocol sets

Platform:

GPL273

Series:

GSE344

14 Samples

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(Submitter supplied) The Arabidopsis Pathoarray 464_001 (GPL3638) was used to compare response of wild-type, rps2-101C (Bent et al., 1994; Mindorinos et al., 1994) and ndr1-1 (Century et al., 1995) to Pseudomonas syringae strain expressing avrRpt2. The two mutants are compromised in RPS2-mediated resistance but distinct difference between them has not been described. The results suggested that ndr1-1 affects a defense signaling pathway(s) in addition to the RPS2-dependent pathway, and indicate that the microarray is a powerful tool for systems analysis of the Arabidopsis disease signaling network. more...

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL3638

8 Samples

Download data: GPR

(Submitter supplied) To evaluate technical reproducibility of Arabidopsis Pathoarray 464_001 (GPL3638), two slides were hybridized with labeled amplified RNA prepared from identical RNA. The RNA was prepared from Pseudomonas syringae ES4326- and 5mM MgSO4- injected samples (Psm 24h set C and mock 24h set C. See also GSE4429, GSM99793 and GSM99794). Keywords: Evaluation of a custom microarray performance

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL3638

4 Samples

Download data: GPR

(Submitter supplied) In order to protect themselves from pathogens, plants activate a battery of defense pathways, many of which involve changes in gene expression. We are interested in identifying plant genes that are differentially expressed in response to pathogen exposure, with the ultimate goal of studying the roles of these genes in plant defense. Keywords: disease response

Organism:

Arabidopsis thaliana

Type:

Expression profiling by array

Platform:

GPL198

2 Samples

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(Submitter supplied) Peripheral blood is an accessible and informative source of transcriptomal information for many human disease and pharmacogenomic studies. While there can be significant advantages to analyzing RNA isolated from whole blood, particularly in clinical studies, the preparation of samples for microarray analysis is complicated by the need to minimize artifacts associated with highly abundant globin RNA transcripts. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL201

24 Samples

Download data: CEL, CHP

(Submitter supplied) Abstract: BACKGROUND: Obtaining reliable and reproducible two-color microarray gene expression data is critically important for understanding the biological significance of perturbations made on a cellular system. Microarray design, RNA preparation and labeling, hybridization conditions and data acquisition and analysis are variables difficult to simultaneously control. A useful tool for monitoring and controlling intra- and inter-experimental variation is Universal Reference RNA (URR), developed with the goal of providing hybridization signal at each microarray probe location (spot). more...

Organism:

Homo sapiens; Mus musculus

Type:

Expression profiling by array

6 related Platforms

31 Samples

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(Submitter supplied) RNA from 11 individual mouse cell lines were reverse-transcribed to cDNA, labeled with Cy5 and cohybridized with Cy3-labeled UMRR onto 7,500-spot mouse oligo microarrays (UNC). The data was analyzed using GeneTraffic software. 300-1000 spots out of 8,000 were flagged on each microarray and excluded from further analysis. Spots with hybridization signals in Cy5 channel higher than 1000 and with Cy5/Cy3 ratio greater than 2 were collected and the number of spots with these characteristics on only one microarray was determined. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL3304

14 Samples

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(Submitter supplied) Microarray coverage of UHRR was determined by counting the number of spots with intensities exceeding the 1% and 5% false positive rates defined using the yeast negative control spots. Seven microarrays from different print runs were used. In four experiments, the UHRR was labeled with Cy5 and in three experiments with Cy3. Labeled UHRR was co-hybridized with Common Reference RNA (CRF) developed at Stanford University (8) labeled with the alternate dye. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

4 related Platforms

7 Samples

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(Submitter supplied) Total RNA isolated from 10 individual human cell lines were reverse-transcribed to cDNA, labeled with Cy5 and co-hybridized with Cy3-labeled UHRR onto 43,000-spot cDNA microarrays (Stanford University). The data was analyzed using GeneTraffic software. Approximately 6000-8000 spots out of 43,000 (14-18 %) were flagged on each microarray and excluded from further analysis. Spots with hybridization signals in Cy5 channel higher than 1000 and with Cy5/Cy3 ratio greater than 2 were collected and the number of spots with these characteristics in only one cell line was determined. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Dataset:

GDS1835

Platform:

GPL3305

10 Samples

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