Adding a Metal Cluster to a Protein Nanostructure (image) DOE/Lawrence Berkeley National Laboratory Share Print E-Mail Caption This image shows a natural atomic-scale protein structure (middle) in a polyhedral bacterial microcompartment (left), and an engineered structure (right) that binds an iron-sulfur cluster (in blue), giving it a new function. The engineered protein was produced in E. coli bacteria--the background image shows a scanning electron micrograph image of E. coli. Credit Berkeley Lab, National Institutes of Health Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.