A qualitative assessment of direct-labeled cDNA products prior to microarray analysis

<p>Abstract</p> <p>Background</p> <p>The success of the microarray process in determining differential gene expression of thousands of genes is dependent upon the quality and integrity of the starting RNA, this being particularly true of direct labeling via a reverse tr...

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Main Authors: Lobenhofer Edward K, Grissom Sherry F, Tucker Charles J
Format: Article
Language:English
Published: BMC 2005-03-01
Series:BMC Genomics
Online Access:http://www.biomedcentral.com/1471-2164/6/36
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author Lobenhofer Edward K
Grissom Sherry F
Tucker Charles J
author_facet Lobenhofer Edward K
Grissom Sherry F
Tucker Charles J
author_sort Lobenhofer Edward K
collection DOAJ
description <p>Abstract</p> <p>Background</p> <p>The success of the microarray process in determining differential gene expression of thousands of genes is dependent upon the quality and integrity of the starting RNA, this being particularly true of direct labeling via a reverse transcription procedure. Furthermore, an RNA of reasonable quality still may not yield reliable hybridization data if the labeling efficiency was poor.</p> <p>Results</p> <p>Here we present a novel assay for assessing the quality of directly labeled fluorescent cDNA prior to microarray hybridization utilizing the Agilent 2100 Bioanalyzer, which employs microfluidic technology for the analysis of nucleic acids and proteins. Using varying amounts of RNase to simulate RNA degradation, we show the strength of this un-advertised assay in determining the relative amounts of cDNA obtained from a direct labeling reaction.</p> <p>Conclusion</p> <p>Utilization of this method in the lab will help to prevent the costly mistake of hybridizing poor quality direct labeled products to expensive arrays.</p>
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spelling doaj.art-9c4c5c91cb0f4b47abf3d11e8dc60bf72022-12-22T01:51:49ZengBMCBMC Genomics1471-21642005-03-01613610.1186/1471-2164-6-36A qualitative assessment of direct-labeled cDNA products prior to microarray analysisLobenhofer Edward KGrissom Sherry FTucker Charles J<p>Abstract</p> <p>Background</p> <p>The success of the microarray process in determining differential gene expression of thousands of genes is dependent upon the quality and integrity of the starting RNA, this being particularly true of direct labeling via a reverse transcription procedure. Furthermore, an RNA of reasonable quality still may not yield reliable hybridization data if the labeling efficiency was poor.</p> <p>Results</p> <p>Here we present a novel assay for assessing the quality of directly labeled fluorescent cDNA prior to microarray hybridization utilizing the Agilent 2100 Bioanalyzer, which employs microfluidic technology for the analysis of nucleic acids and proteins. Using varying amounts of RNase to simulate RNA degradation, we show the strength of this un-advertised assay in determining the relative amounts of cDNA obtained from a direct labeling reaction.</p> <p>Conclusion</p> <p>Utilization of this method in the lab will help to prevent the costly mistake of hybridizing poor quality direct labeled products to expensive arrays.</p>http://www.biomedcentral.com/1471-2164/6/36
spellingShingle Lobenhofer Edward K
Grissom Sherry F
Tucker Charles J
A qualitative assessment of direct-labeled cDNA products prior to microarray analysis
BMC Genomics
title A qualitative assessment of direct-labeled cDNA products prior to microarray analysis
title_full A qualitative assessment of direct-labeled cDNA products prior to microarray analysis
title_fullStr A qualitative assessment of direct-labeled cDNA products prior to microarray analysis
title_full_unstemmed A qualitative assessment of direct-labeled cDNA products prior to microarray analysis
title_short A qualitative assessment of direct-labeled cDNA products prior to microarray analysis
title_sort qualitative assessment of direct labeled cdna products prior to microarray analysis
url http://www.biomedcentral.com/1471-2164/6/36
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