Structure of a glycerol-conducting channel and the basis for its selectivity.
Fu, D., Libson, A., Miercke, L.J., Weitzman, C., Nollert, P., Krucinski, J., Stroud, R.M.(2000) Science 290: 481-486
- PubMed: 11039922 
- PubMed Abstract: 
Membrane channel proteins of the aquaporin family are highly selective for permeation of specific small molecules, with absolute exclusion of ions and charged solutes and without dissipation of the electrochemical potential across the cell membrane. ...