Retinoid X receptor (RXR)-gamma is a nuclear receptor-type transcription factor expressed mostly in the skeletal muscle, and regulated by nutritional conditions. Previously, we established transgenic mice overexpressing RXR-gamma in the skeletal muscle (RXR-gamma mice), which showed lower blood glucose than the control mice. We used microarrays to investigate their glucose metabolism gene expression change. Overall design: RNA was isolated from the skeletal muscle of sex- and age-matched RXR-gamma mice and non-transgenic control mice (females at 4 months of age, five samples from each group were combined). Each of the combined samples of the two groups was hybridized to the Affymetrix MG430 microarray.