Frederick, MD. December 15, 2004 - SABiosciences Corp. announced today the launch and availability of a comprehensive solution for PCR-based gene expression analysis. The products are marketed under the trade names RT² Real-Time™ and RT² End-Point™ PCR. The gene expression assay kits are designed for either real-time or conventional (end-point) PCR applications. The entire product line offers primer sets for every gene in the human, mouse and rat genomes and several PCR master mixes accommodating different PCR instruments.

"PCR-based assays are commonly recommended for microarray data verification. As a leading provider of pathway-focused DNA microarrays, we recognize the demand for pre-designed PCR assay kits for analyzing every possible gene on any microarray. Our RT² PCR products are designed for this purpose," said Dr. Xiao Zeng, Director of Product Development. "SYBR Green-based real-time PCR is the most cost-effective method for verifying microarray data. SABiosciences has recently purchased a SYBR Green license from Molecular Probes. As a licensed provider, we have developed different master mix formulations containing SYBR Green to make our RT² PCR products even more convenient. Now, microarray researchers only need to find their genes of interest using our on-line search engine. They can then choose either a standard real-time or conventional PCR kit. Or, they can get the primers and select the master mix that best fits their real-time PCR instrument," Zeng continued.

SABiosciences' RT² PCR product lines are designed for primary gene expression analysis as well as microarray data verification. The RT² Real-Time™ PCR kits are designed for SYBR green based real-time quantitative PCR, while the RT² End-Point™ PCR kits bring more quantitative conventional PCR to researchers without access to real-time equipment. Primer sets and kits are available for analyzing any gene found on human, mouse or rat DNA microarrays.

SABiosciences Corp. is a provider of Pathway-Centric Tools and Technology™. The company's four technology platforms are the foundation of its complementary toolset for systematic studies of gene expression and gene function: pathway-focused DNA microarrays, PCR and real-time PCR, RNA interference and gene function assays. For more information, please visit the company's web site at http://www.sabiosciences.com.