Applied Biosystems (NYSE:ABI), an Applera Corporation Business, today announced the introduction of four new Gene Signature Panels as part of its TaqMan(R) Low Density Array (TLDA) product line for real-time PCR applications. The new arrays include the Human G Protein-Coupled Receptors (GPCR) Panel, Human Protein Kinase Panel, Mouse Immune Panel, and Human Endogenous Controls Panel.