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Sample GSM1670942 Query DataSets for GSM1670942
Status Public on Apr 28, 2016
Title h22: Training Set - Subject #22
Sample type protein
 
Channel 1
Source name Serum (Diluted 1:50)
Organism Homo sapiens
Characteristics Sex: F
age: 34
race: Caucasian
blood type: O
antibody: conjugated anti-human IgG (Jackson 109-505-008)
Extracted molecule protein
Extraction protocol Serum was obtained from peripheral blood samples
Label DyLight549
Label protocol After serum was incubated on the array, bound anti-glycan antibodies were labeled for 2 hours with a combination of DyLight549 conjugated anti-human IgG (Jackson 109-505-008) and DyLight 649 conjugated anti-human IgM (Jackson Immuno, 109-495-043).
 
Channel 2
Source name Serum (Diluted 1:50)
Organism Homo sapiens
Characteristics Sex: F
age: 34
race: Caucasian
blood type: O
antibody: conjugated anti-human IgM (Jackson Immuno, 109-495-043)
Extracted molecule protein
Extraction protocol Serum was obtained from peripheral blood samples
Label DyLight 649
Label protocol After serum was incubated on the array, bound anti-glycan antibodies were labeled for 2 hours with a combination of DyLight549 conjugated anti-human IgG (Jackson 109-505-008) and DyLight 649 conjugated anti-human IgM (Jackson Immuno, 109-495-043).
 
 
Hybridization protocol Arrays were blocked with BSA overnight, and serum samples (diluted 1:50) was incubated on the array for 4 hours at 37 C and gentle agitation (100 RPM).  Slides were then washed with PBS contain 0.05% Tween (PBST).  After washing, bound antibodies were detected with fluorescently labeled secondary antibodies.  Slides were then washed with PBST, spun dry in a centrifuge, and scanned.
Scan protocol Slides were scanned with a Genepix 4000A fluorescence scanner at two gain settings (typically 430 and 520) in order to increase dynamic range.  Signal from ch1 (532 nm) was analyzed to determine the level of bound DyLight 549 conjugated secondary antibody specific for human IgG. Signal from ch2 (635nm) was analyzed to determine the level of bound DyLight 649 secondary antibody specific for human IgM. Scanned images were analyzed with Genepix Pro (v6.0) to determine the fluorescence and background signal for each array component.
Description Training Set - Subject #22
Data processing First, median pixel intensity of each feature was background subtracted. Second, signals for features that were saturated at the high photomultipler tube (PMT) setting were calculated by proportionally scaling the value from the low PMT setting according to a correction factor, which was calculated based on mid-intensity signals measured at the high and low PMT settings. To account for slide-to-slide variations in array processing, microarray data were normalized by median centering based on a reference serum sample analyzed on each slide. Additionally, a minimum signal of 150 was set as the floor. Since array features were printed in duplicate and all samples were analyzed on two slides, pre-processing averaged normalized data from 4 technical replicates. Final data are reported on a log 2 scale.

Signals for IgG and IgM were analyzed independently and are available as supplementary data linked to GSE68403. Raw (.gpr) files are also available as supplementary data linked to GSE68403. See README file for details.
 
Submission date Apr 29, 2015
Last update date Apr 28, 2016
Contact name Jeff Gildersleeve
Organization name National Cancer Institute
Street address 376 Boyles St.
City Frederick
State/province MD
ZIP/Postal code 21702
Country USA
 
Platform ID GPL20116
Series (2)
GSE68403 Development of a glycan microarray based method for ABO blood typing
GSE68405 A Simple, Inexpensive Strategy for Predicting Potential Beneficial Clinical Responses on Prostate Cancer Vaccine Therapy

Supplementary data files not provided
Processed data are available on Series record

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