Comment on

• Helix deformation is coupled to vectorial proton transport in the photocycle of bacteriorhodopsin.

  Royant A, Edman K, Ursby T, Pebay-Peyroula E, Landau EM, Neutze R. Royant A, et al. Nature. 2000 Aug 10;406(6796):645-8. doi: 10.1038/35020599. Nature. 2000. PMID: 10949307
• Structural alterations for proton translocation in the M state of wild-type bacteriorhodopsin.

  Sass HJ, Büldt G, Gessenich R, Hehn D, Neff D, Schlesinger R, Berendzen J, Ormos P. Sass HJ, et al. Nature. 2000 Aug 10;406(6796):649-53. doi: 10.1038/35020607. Nature. 2000. PMID: 10949308
• Molecular mechanism of vectorial proton translocation by bacteriorhodopsin.

  Subramaniam S, Henderson R. Subramaniam S, et al. Nature. 2000 Aug 10;406(6796):653-7. doi: 10.1038/35020614. Nature. 2000. PMID: 10949309