TopoGEN is a research diagnostics company that works in drug development and discovery involving topoisomerases. The company provides Drug Screening Kits to identify topoisomerase active drugs for use in cancer chemotherapy and antibacterial applications. The company also provides assay kits for assaying both prokaryotic and eukaryotic topoisomerases (type I, II, IV, gyrase), both in vitro and in vivo. Furthermore, the company offers a complete line of DNA substrates and DNA cleavage targets, topoisomerase inhibitors, topoisomerase antibodies, and kit replenishment reagents