Structural insights into the proton pumping by unusual proteorhodopsin from nonmarine bacteria.
Gushchin, I., Chervakov, P., Kuzmichev, P., Popov, A.N., Round, E., Borshchevskiy, V., Ishchenko, A., Petrovskaya, L., Chupin, V., Dolgikh, D.A., Arseniev, A.A., Kirpichnikov, M., Gordeliy, V.(2013) Proc Natl Acad Sci U S A 110: 12631-12636
- PubMed: 23872846 
- DOI: 10.1073/pnas.1221629110
- Primary Citation of Related Structures:  
4HYJ - PubMed Abstract: 
Light-driven proton pumps are present in many organisms. Here, we present a high-resolution structure of a proteorhodopsin from a permafrost bacterium, Exiguobacterium sibiricum rhodopsin (ESR). Contrary to the proton pumps of known structure, ESR possesses three unique features ...