Fig. 3: The extracellular domain of OCT1 is stabilized by disulfide bonds and decorated with glycosylation sites.
From: Structural basis of promiscuous substrate transport by Organic Cation Transporter 1

Close-up of the ECD showing the cryo-EM map for the disulfides (yellow) and glycosylation sites with glycan density in pink. Map contour level labeled below each panel.