Figure 4 - full size

 

Figure 4.
Fig. 4. A second Trp molecule is bound between R30 and D404 of the extracellular gate only in the open-to-out conformation. (A) Trp602 bound in the extracellular vestibule of LeuT, residing between D404 and R30, flanked by the -helix in TM10. (B) Extracellular vestibule of the LeuT-SeMet complex. Anomalous-difference Fourier map (contoured at 5 and 15 and depicted in green and blue mesh, respectively) showing no substantial density peaks in the extracellular vestibule.

The above figure is reprinted by permission from the AAAs: Science (2008, 322, 1655-1661) copyright 2008.