text: G. Marius Clore MAE, FRSC, FRS is a British-born, American molecular biophysicist and structural biologist. He was born in London, U.K. and is a dual U.S./U.K. Citizen.  He is a Member of the National Academy of Sciences, a Fellow of the Royal Society, a NIH Distinguished Investigator, and the Chief of the Molecular and Structural Biophysics Section in the Laboratory of Chemical Physics of the National Institute of Diabetes and Digestive and Kidney Diseases at the U.S. National Institutes of Health.  He is known for his foundational work in three-dimensional protein and nucleic acid structure determination by biomolecular NMR spectroscopy, for advancing experimental approaches to the study of large macromolecules and their complexes by NMR, and for developing NMR-based methods to study rare conformational states in protein-nucleic acid and protein-protein recognition. Clores discovery of previously undetectable, functionally significant, rare transient states of macromolecules has yielded fundamental new insights into the mechanisms of important biological processes, and in particular the significance of weak interactions and the mechanisms whereby the opposing constraints of speed and specificity are optimized. Further, Clores work opens up a new era of pharmacology and drug design as it is now possible to target structures and conformations that have been heretofore unseen.