High-quality total RNA for human, mouse, and rat microarray gene-expression profiling that acts as a consistent control for standard data set comparisons.

• Comprised of 10 cell lines for human, 11 for mouse and 14 for rat giving broad gene coverage
• UHRR selected as one of the two standards in the FDA led Microarray Quality Control (MAQC) project

The reference RNA is designed to be used as a reference for uarray gene-profiling experiments.