Molecular mechanism of light-driven sodium pumping.
Kovalev, K., Astashkin, R., Gushchin, I., Orekhov, P., Volkov, D., Zinovev, E., Marin, E., Rulev, M., Alekseev, A., Royant, A., Carpentier, P., Vaganova, S., Zabelskii, D., Baeken, C., Sergeev, I., Balandin, T., Bourenkov, G., Carpena, X., Boer, R., Maliar, N., Borshchevskiy, V., Buldt, G., Bamberg, E., Gordeliy, V.(2020) Nat Commun 11: 2137-2137
- PubMed: 32358514 
- DOI: 10.1038/s41467-020-16032-y
- Primary Citation of Related Structures:  
6XYT, 6YBY, 6YBZ, 6YC0, 6YC1, 6YC2, 6YC3, 6YC4 - PubMed Abstract: 
The light-driven sodium-pumping rhodopsin KR2 from Krokinobacter eikastus is the only non-proton cation active transporter with demonstrated potential for optogenetics. However, the existing structural data on KR2 correspond exclusively to its ground state, and show no sodium inside the protein, which hampers the understanding of sodium-pumping mechanism ...