I create new computer software that is used at the NIH and around the world. This software is used to study the structure of important proteins. The structure of a protein is important in understanding how proteins work. I use an imaging technology tool called nuclear magnetic resonance (NMR) to get a clear picture of the protein molecule. The equipment used in NMR is similar to medical magnetic resonance imaging (MRI) technology, but NMR provides much more detailed information so that we can determine the structure of protein molecules.