SuperArray Bioscience has released a PCR-based technique for profiling the expression of a focused panel of genes. These PCR Arrays bring routine expression profiling to researchers who prefer PCR-based methods over hybridization-based microarray technologies. The RT2 Profiler PCR Array is a 96-well plate containing primers for a thoroughly researched panel of relevant, pathway or disease-focused genes plus appropriate positive and negative controls. Arrays with pre-designed gene lists are available as catalog products; however, the gene content of the arrays may also be customized. For a complete and flexible assay system, the arrays are combined with a SYBR Green-based real-time PCR master mix, optimized for the instrument in the researcher’s lab.