Array Bridge develops a novel technology called PEP that can systematically analyze protein function from a proteome. Hundreds of functional proteins can be assayed simultaneously to generate a comprehensive three-dimensional landscape of a protein family such as protein kinases, phosphatases, proteinases and oxido reductases. This information can be integrated into other genomic and proteomic knowledge bases to provide further insight of important biological processes such as cancer development and aging. This technology can also be used for fast protein purification.