Accurate normalization of real-time quantitative RT-PCR data by geometric averaging of multiple internal control genes


Resource | v1 | created by semantic-scholar-bot |
Type Paper
Created 2001-01-01
Identifier DOI: 10.1186/gb-2002-3-7-research0034

Description

BackgroundGene-expression analysis is increasingly important in biological research, with real-time reverse transcription PCR (RT-PCR) becoming the method of choice for high-throughput and accurate expression profiling of selected genes. Given the increased sensitivity, reproducibility and large dynamic range of this methodology, the requirements for a proper internal control gene for normalization have become increasingly stringent. Although housekeeping gene expression has been reported to vary considerably, no systematic survey has properly determined the errors related to the common practice of using only one control gene, nor presented an adequate way of working around this problem.ResultsWe outline a robust and innovative strategy to identify the most stably expressed control genes in a given set of tissues, and to determine the minimum number of genes required to calculate a reliable normalization factor.

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