Crystallographic Study of the Tetrabutylammonium Block to the KcsA K(+) Channel
Yohannan, S., Hu, Y., Zhou, Y.(2007) J Mol Biol 366: 806-814
- PubMed: 17196615 
- DOI: 10.1016/j.jmb.2006.11.081
- Primary Citation of Related Structures:  
2DWD, 2DWE, 2HVJ, 2HVK - PubMed Abstract: 
K(+) channels play essential roles in regulating membrane excitability of many diverse cell types by selectively conducting K(+) ions through their pores. Many diverse molecules can plug the pore and modulate the K(+) current. Quaternary ammonium (QA) ions are a class of pore blockers that have been used for decades by biophysicists to probe the pore, leading to important insights into the structure-function relation of K(+) channels ...