Science Advances

Supplementary Materials

This PDF file includes:

  • Fig. S1. KR2 ion uptake pore.
  • Fig. S2. Comparison of orientations and cavities inside different KR2 structures.
  • Fig. S3. Comparison of extracellular regions of different KR2 structures.
  • Fig. S4. Activity tests of KR2 potassium-pumping mutants.
  • Fig. S5. Structural alignment of potassium-pumping KR2 mutants with the model of wild-type protein.
  • Fig. S6. Structures of potassium-pumping KR2 mutants.
  • Fig. S7. KR2 crystal soaking.
  • Fig. S8. KR2 dry and wet forms.
  • Fig. S9. Activity tests of KR2 at different pH.
  • Fig. S10. Electron density maps of KR2 structures.
  • Table S1. Summary information of crystal structures obtained.
  • Table S2. Data collection and refinement statistics of the wild-type KR2.
  • Table S3. Data collection and refinement statistics of KR2 mutants.
  • Table S4. Distance between Asp116 oxygen and RSB nitrogen atoms in KR2 models.

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