Dynamic Pathways for Ligand Migration (IMAGE) Virginia Tech Caption Dynamic pathways for ligand migration between solvent and a binding site in the oxygen-storage protein myoglobin are shown. The pathways are not seen in the static structure, but come about though thermal fluctuations modeled by molecular dynamics simulations. Pathways and connecting gateways are respectively shown in blue and yellow. Protein helical structural elements and connecting loops are represented by grey colored cylinders and rope. The iron-atom binding site -- buried and inaccessible to solvent in the static structure -- is shown as a stick figure model. Credit Image by Nicholas Polys, Virginia Tech Advanced Research Computing Usage Restrictions With report of Alexey Onufriev and colleagues myoglobin research License Licensed content 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.