Title |
A ratiometric-based measure of gene co-expression
|
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Published in |
BMC Bioinformatics, November 2014
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DOI | 10.1186/1471-2105-15-331 |
Pubmed ID | |
Authors |
Anna CT Abelin, Georgi K Marinov, Brian A Williams, Kenneth McCue, Barbara J Wold |
Abstract |
Gene co-expression analysis has previously been based on measures that include correlation coefficients and mutual information, as well as newcomers such as MIC. These measures depend primarily on the degree of association between the RNA levels of two genes and to a lesser extent on their variability. They focus on the similarity of expression value trajectories that change in like manner across samples. However there are relationships of biological interest for which these classical measures are expected to be insensitive. These include genes whose expression levels are ratiometrically stable and genes whose variance is tightly constrained. Large-scale studies of relatively homogeneous samples, including single cell RNA-seq, are experimental settings in which such relationships might be especially pertinent. |
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