Fig. 5: Schematic representation of the chloride pumping mechanism by SyHR during photocycle.
From: Structural insights into light-driven anion pumping in cyanobacteria
Models of the ground, K, and O states were obtained in the present work. The model of the L,N state is lacking and is shown schematically based on the structure of the ground state of Cl−-bound form of SyHR. The side view of SyHR is shown for each state in the way that the cytoplasmic side points to the top and the extracellular side points to the bottom of the figure. Internal cavities were calculated using HOLLOW and are shown as red surface. Cl− ions are shown as green spheres. The retinal cofactor and K205 are colored cyan.
