In plants and fungi, cellular ion homeostasis is powered by the proton pump, a member of the P-type ATPase family. The first X-ray structure of the H+-ATPase is presented, and insight into the mechanism by which protons are transported against an electrochemical gradient is provided.
- Bjørn P. Pedersen
- Morten J. Buch-Pedersen
- Poul Nissen