Heptares Therapeutics Ltd is a new drug discovery company whose aim is to apply structural knowledge of G-protein coupled receptors (GPCRs) to the design and development of its own drug molecules. HTL is a spin-out from the MRC Laboratory of Molecular Biology, Cambridge, based on the pioneering work of the founding scientists Richard Henderson and Chris Tate and of a wider group of MRC scientists, including Gebhard Schertler, and Ed Hulme of the National Institute of Medical Research.