Figure 1 (image) Moscow Institute of Physics and Technology Share Print E-Mail Caption On the left: the dimer of heliorhodopsin 48C12 in the cell membrane (shown as gray discs). On the right: High-resolution electron density maps demonstrate the presence of an acetate anion at the active site of heliorhodopsin 48C12. Credit K. Kovalev et. al. 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.