Structure of the Iron Transport-Protein (image) University of Zurich Share Print E-Mail Caption This shows the structure of the iron transport-protein. The view is from within the membrane (indicated by black lines). A zoom into the iron binding-site (right) shows the interaction of the bound ion with conserved amino-acids. The methionine that is key for the ion selectivity is labelled (Met). Credit UZH 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.