Single-Unit Imaging of Membrane Protein-Embedded Nanodiscs from Two Oriented Sides by High-Speed Atomic Force Microscopy

？ Membrane protein-embedded nanodiscs were used for high-speed (HS)-AFM observation ？ Nanodiscs in an end-up and side-on orientation were observed by HS-AFM in real time ？ HS-AFM combined with nanodiscs is a powerful tool for membrane protein dynamic