Fig. 1: Structure of ChRmine in lipid nanodiscs.
From: Cryo-EM structures of the channelrhodopsin ChRmine in lipid nanodiscs
a Cryo-EM map of retinal-bound ChRmine in a MSP1E3D1 nanodisc at 2.7 Å resolution viewed from (left) the membrane plane, (middle) the extracellular side, and (right) the intracellular side. Subunits are colored red, teal, or yellow; lipids are white; and the nanodisc is transparent. b Model shown in the same views as (a) with all-trans retinal shown as purple spheres. c Model and (d) cartoon illustration of a single ChRmine subunit colored blue (N-terminus) to red (C-terminus). e Helical arrangement and packing in the ChRmine trimer viewed from the intracellular side and clipped above the all-trans retinal.
