From the Cover: Ligand-gated diffusion across the bacterial outer membrane.
Lepore, B.W., Indic, M., Pham, H., Hearn, E.M., Patel, D.R., van den Berg, B.(2011) Proc Natl Acad Sci U S A 108: 10121-10126
- PubMed: 21593406 
- DOI: 10.1073/pnas.1018532108
- Primary Citation of Related Structures:  
2R89, 2R8A, 3PF1, 3PGR, 3PGS, 3PGU - PubMed Abstract: 
Ligand-gated channels, in which a substrate transport pathway is formed as a result of the binding of a small-molecule chemical messenger, constitute a diverse class of membrane proteins with important functions in prokaryotic and eukaryotic organisms. Despite their widespread nature, no ligand-gated channels have yet been found within the outer membrane (OM) of Gram-negative bacteria ...