Fig. 2: Interactions between the Pex proteins.

a, Transmembrane segments of the ligase components, shown as cylinders. The transmembrane segments are numbered. The ring finger tower was omitted for clarity. The dashed lines indicate segments that were invisible in the density map. b, Interacting transmembrane segments are shown as cartoons. Hydrophobic amino acids at the interface are shown as sticks. c, Ring finger domains of the ligase complex are shown as cartoons. Cys residues are shown in yellow and Zn²⁺ atoms in grey. The dashed box shows the interface between RF10 and RF12, with interacting residues highlighted as sticks. d, Magnified view of the interface between RF10 and RF12 (orange dashed line), with interacting hydrophobic residues shown as sticks.