At last, the structure of an ion-selective channel
David E. Clapham1
1David E. Clapham is at the Howard Hughes Medical Institute, Children's Hospital, Harvard Medical School, 320 Longwood Avenue, Boston, Massachusetts 02115, USA. email: clapham@rascal.med.harvard.edu
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.