| P13272 | n/a | 2a06 | UNL | E | 4061 | e2a06E2 | ISP domain | ISP domain | ISP domain | Rieske |
| P13272 | n/a | 2a06 | UNL | I | 4072 | e2a06I1 | Ubiquinol-cytochrome c reductase 8 kDa protein | Ubiquinol-cytochrome c reductase 8 kDa protein | Ubiquinol-cytochrome c reductase 8 kDa protein | Ubiq-Cytc-red_N |
| P13272 | n/a | 2a06 | UNL | N | 4073 | e2a06R2 | iron-sulfur subunit (ISP) transmembrane anchor | iron-sulfur subunit (ISP) transmembrane anchor | iron-sulfur subunit (ISP) transmembrane anchor | UCR_TM |
| P13272 | n/a | 2a06 | UNL | R | 4069 | e2a06R2 | iron-sulfur subunit (ISP) transmembrane anchor | iron-sulfur subunit (ISP) transmembrane anchor | iron-sulfur subunit (ISP) transmembrane anchor | UCR_TM |
| P13272 | n/a | 2a06 | UNL | V | 4090 | e2a06V1 | Ubiquinol-cytochrome c reductase 8 kDa protein | Ubiquinol-cytochrome c reductase 8 kDa protein | Ubiquinol-cytochrome c reductase 8 kDa protein | Ubiq-Cytc-red_N |