Vinzenz M. Unger is in the Department of Molecular Biophysics and Biochemistry, Yale University, 333 Cedar Street, New Haven, Connecticut 06520, USA. vinzenz.unger@yale.edu
The electron and X-ray crystallographic structures of AQP1 and GlpF, respectively, provide insights into the mechanisms of how water and small solutes such as glycerol selectively traverse lipid bilayers.