At last, the structure of an ion-selective channel.
Ion channels allow specific ions to flow across the cell membrane at rates of ten million ions per second with error rates of only 1 in 1,000. The structure of a protein that accomplishes this feat has now been discovered.
Clapham
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D001426:Bacterial Proteins / Q000737:chemistry*; D008958:Models, Molecular; D015221:Potassium Channels / Q000737:chemistry*; D017434:Protein Structure, Tertiary; D013302:Streptomyces / Q000737:chemistry
D001426:Bacterial Proteins; D015221:Potassium Channels; C107790:prokaryotic potassium channel