| Takao Yagi and Akemi Matsuno-Yagi | Respiratory complex I: hop (structure), step (reaction mechanism) and jump (potential remedy) | 245-246 | |
| Leonid A. Sazanov | The mechanism of coupling between electron transfer and proton translocation in respiratory complex I | 247-253 | |
| Thorsten Friedrich | On the mechanism of respiratory complex I | 255-268 | |
| Eiko Nakamaru-Ogiso, Madhavan Narayanan, and Joseph A. Sakyiama | Roles of semiquinone species in proton pumping mechanism by complex I | 269-277 | |
| Motoaki Sato, Jesus Torres-Bacete, Prem Kumar Sinha, Akemi Matsuno-Yagi, and Takao Yagi | Essential regions in the membrane domain of bacterial complex I (NDH-1): the machinery for proton translocation | 279-287 | |
| Blanca Barquera | The sodium pumping NADH:quinone oxidoreductase (Na+-NQR), a unique redox-driven ion pump | 289-298 | |
| Margarida Duarte and Ana M. Tomás | The mitochondrial complex I of trypanosomatids - an overview of current knowledge | 299-311 | |
| Masatoshi Murai and Hideto Miyoshi | Chemical modifications of respiratory complex I for structural and functional studies | 313-321 | |
| Rasika S. Vartak, Manpreet Kaur Semwal, and Yidong Bai | An update on complex I assembly: the assembly of players | 323-328 | |
| Jae H. Hur, Devon A. Stork, and David W. Walker | Complex-I-ty in aging | 329-335 | |
| Salvatore Pepe, Robert M. Mentzer Jr., and Roberta A. Gottlieb | Cell-permeable protein therapy for complex I dysfunction | 337-345 |