The occupancy of ions in the K+ selectivity filter: Charge balance and coupling of ion binding to a protein conformational change underlie high conduction rates
Zhou, Y., MacKinnon, R.(2003) J.Mol.Biol. 333: 965-975
- PubMed: 14583193 
- Primary Citation of Related Structures:  
- PubMed Abstract: 
Potassium ions diffuse across the cell membrane in a single file through the narrow selectivity filter of potassium channels. The crystal structure of the KcsA K+ channel revealed the chemical structure of the selectivity filter, which contains four ...