Table 3. Properties of E. coli peripheral arm extensions (analyzed in PIZA).
| Subunit | Extension residues numbers | Interacts with subunit | Interaction surface [Å2] | Secondary structure | Specific interactions | Spatial overlap with subunits in other species |
|---|---|---|---|---|---|---|
| NuoF | C-term 424–445 | NuoI, NuoD NuoB |
254 557 118 |
no | Nb 8 Sb 0 Hb 0 Sb 1 Hb 0 Sb 0 |
Nqo15 T. Therophilus
NUIM,NUZM,NUMM*, Y. Lipolytica Ndufs6, Ndufs8, mouse |
| NouG | Insertion 687–781 | NuoCD NuoI |
1080 585 |
two helical turns | Hb 12 Sb 5 Hb 13 Sb 4 |
Nqo5 T. Therophilus
NUGM, NUYM Y. Lipolytica Ndufs3, Ndufs4 mouse |
| NuoI | C-term 139–180 | NuoG NuoB NuoF NuoD NuoE |
805 348 292 122 421 |
one helical turn | Nb 8 Sb 5 Nb 1 Sb 0 Nb 3 Sb 0 Nb 0 Sb 1 Nb 1 Sb 0 |
Nqo15 T. Therophilus
NUMM Y. Lipolytica Ndufs6 mouse |
| NuoB | C-term 196–220 | NuoI NuoD NuoF |
1095 216 117 |
two helical turns | Nb 16 Sb 4 Nb 1 Sb 3 Ng 0 Sb 0 |
NUIM, N7BM Y. Lipolytica
Ndufs8, Ndufa12 mouse |
*Subunits in bold are homologs of NuoI.