Georgios Skiniotis is a structural biologist with expertise in electron cryo-microscopy (cryoEM).  Dr. Skiniotis has exploited the power of cryoEM to study a wide range of important biological “machines” or macromolecular assemblies.  His main interests are on the mechanisms of transmembrane signal instigation with a particular focus on G protein-coupled receptors and cytokine receptors.  The application of cryoEM to such systems has also driven him to explore and refine approaches for resolving technically challenging problems.