Fig. 2: TMD density in the absence and presence of ion channel blockers.
From: Trapping of spermine, Kukoamine A, and polyamine toxin blockers in GluK2 kainate receptor channels

Coronal (a) and transverse (b) plane views of cryo-EM density for the TMD in GluK2closed, GluK2NpTx8, GluK2PhTx74, GluK2KukoA, and GluK2SPM, with GluK2 subunits colored green, pink, blue and orange, and blockers red. The dashed black line in a shows where the density is cut away in b, while the dashed black line in b shows where the density is cut away in a.