Fig. 4

ATP-bound inward-facing and outward-facing structures of ABCD1. a, c, e, d Cartoon structures representing ABCD1 in complex with ATP in outward-facing state. a, e View from the peroxisome lumen side and cytosol; c side view. g Zoomed-in view of the ATP-binding site. b, d, f, h Cartoon representations of ABCD1 in the complex of ATP in inward-facing state, viewed from a similar orientation as the outward-facing structure on the left