Fig. 5: The crystal structure of xlσ1RC179/C203-S1RA.
From: An open-like conformation of the sigma-1 receptor reveals its ligand entry pathway
a Superposition of one protomer of xlσ1RC179/C203-S1RA (in green), xlσ1Ropen-endo (in blue), and xlσ1Rclosed-S1RA (in orange), viewed perpendicular to the membrane from the membrane side. b The close-up view of the superposition of one protomer of xlσ1RC179/C203-S1RA (in green) and xlσ1Rclosed-S1RA (in orange), viewed parallel to the membrane. Cys179, Cys203, and the ligand, S1RA, are displayed in sticks.
