### Description

This column shows the expression of XM RefSeq mRNA transcripts corresponding to UCSC Known Genes. Values correspond to basal expression levels of the transcripts in the various tissues. White means a high level of expression, and black means no significant level of expression. The values used are normalized by the authors on the raw intensites using a median-subtracted arcsinh variance-stabilizing normalization method where negative values are zeroed out.

### Column Configuration

The column configuration page can be accessed via the configure button in the top menu.

- Brightness: To increase or decrease the brightness of the expression colors, edit the number in the column's brightness text box. Values greater than 1.0 increase the brightness, while those less than 1.0 dim the color. The default brightness for this track is set at 1.5 because it's a bit dark.

### Methods

For detailed information about the experiments, see Zhang et al., "The functional landscape of mouse gene expression", J Biol, Dec 6, 2004.

### Credits

This data was obtained from: Huges Lab, U. Toronto