Overview of three WDR26-binding elements of YPEL5: (1) residues at the extreme YPEL5 N terminus interacting with the loops surrounding the central pore of WDR26 β-propeller (left); (2) YPEL5 surface encompassing strands and connecting loops from its central β sheet docked at the side of the second WDR26 β-propeller (right, top); (3) the peptide-like YPEL5 C terminus interacting with the largely basic groove formed by the blades of WDR26 β-propeller that also binds YPEL5 N terminus (right, bottom).
