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Updated: Jul 17, 2026

DNA Microarrays: Sample Quality Control, Array Hybridization and Scanning
Published on: March 15, 2011
Normalization of boutique two-color microarrays with a high proportion of differentially expressed probes
Alicia Oshlack1, Dianne Emslie, Lynn M Corcoran
1Walter and Eliza Hall Institute of Medical Research, Royal Parade, Parkville, Victoria, Australia. oshlack@wehi.edu.au
Abstract:
Normalization is critical for removing systematic variation from microarray data. For two-color microarray platforms, intensity-dependent lowess normalization is commonly used to correct relative gene expression values for biases. Here we outline a normalization method for use when the assumptions of lowess normalization fail. Specifically, this can occur when specialized boutique arrays are constructed that contain a subset of genes selected to test particular biological functions.

