BIOCHEMISTRY:
A Missing Link in Membrane Protein Evolution
Bert Poolman, Eric R. Geertsma, Dirk-Jan Slotboom
Discerning the orientation of subunits of an unusual bacterial membrane protein suggests how the particular topology of other membrane proteins may have evolved.
The authors are in the Department of Biochemistry, Groningen Biomolecular Sciences and Biotechnology Institute, and Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, Netherlands. E-mail: b.poolman{at}rug.nl