Table 1.
|
Complex I subunits of Arabidopsis
|
Complex I subunits of Polytomella
|
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|---|---|---|---|---|---|
|
peripheral arm and bridge domain
|
peripheral arm and bridge domain
|
||||
| core subunits (7) |
conserved accessory subunits (9) |
plant-specific accessory subunits (1) |
core subunits (7) |
conserved accessory subunits (9) |
plant-specific accessory subunits (1) |
| 24 kDa | 13 kDa | C1-FDX | 24 kDa | 13 kDa | C1-FDX (NUOP3) |
| 51 kDa | 18 kDa | 51 kDa | 18 kDa | ||
| 75 kDa | 39 kDa | 75 kDa | 39 kDa | ||
| TYKY-1 | B8 | TYKY | B8 | ||
| PSST | B13 | PSST | B13 | ||
| ND7 | B14 | ND7 | B14 | ||
| ND9 | B14.5a | ND9 | B14.5a | ||
| B17.2 | B17.2 | ||||
| SDAP-2 | SDAP-2 | ||||
|
|
|
||||
|
membrane arm and γCA domain |
membrane arm and γCA domain |
||||
| core subunits (7) |
conserved accessory subunits (17) |
plant-specific accessory subunits (6) |
core subunits (7) |
conserved accessory subunits (18) |
plant-specific accessory subunits (9) |
|
|
|
||||
| ND1 | 15 kDa-1/2 | CA1/CA3 | ND1 | 15 kDa | CA1/CA3 |
| ND2 | AGGG | CA2 | ND2 | AGGG | CA2 |
| ND3 | ASHI | CAL2/CAL1 | ND3 | ASHI | CAL |
| ND4 | B9 | P1 | ND4 | B9 | NUOP4 |
| ND4L | B12-2 | P2 | ND4L | B12 | NUOP5 |
| ND5 | B14.5b | unknown su1 | ND5 | B14.5b | NUOP7 |
| ND6 | B14.7* | ND6 | B14.7 | NUOP8 | |
| B15 | B15 | unknown su1 | |||
| B16.6-2 | B16.6 | unknown su2 | |||
| B18 | B18 | ||||
| B22 | B22 | ||||
| ESSS-1 | ESSS | ||||
| KYFI | KYFI | ||||
| MNLL | MNLL | ||||
| MWFE | MWFE | ||||
| PDSW-1 | PDSW | ||||
| PGIV-2 | PGIV | ||||
| SDAP-1 | SDAP-1 | ||||
Subunit B14.7 (*) from Arabidopsis was not identified in the cryoEM density maps but has been detected by MS. Extensions -1/-2 indicate isoforms for some Arabidopsis complex I subunits. The dominant isoform was fitted to the map (except for SDAP, which occurs in two versions in Arabidopsis and Polytomella complex I). Unknown su: subunits not assigned due to limited amino acid sequence information. For protein accession numbers, see Supplemental Table S1.