EC Number |
Substrates |
Organism |
Products |
Reversibility |
---|
7.1.1.4 | 2 caldariellaquinol + O2 + n H+[side 1] |
proposed overall intramolecular electron transfer scheme of the terminal oxidase supercomplex from Sulfolobus sp. strain 7: caldariellaquinol -> cytochrome b562 -> Rieske FeS center -> cytochrome a583-aa3 -> molecular oxygen |
Sulfolobus sp. |
2 caldariellaquinone + 2 H2O + n H+[side 2] |
- |
? |
7.1.1.4 | 2 caldariellaquinol + O2 + n H+[side 1] |
proposed overall intramolecular electron transfer scheme of the terminal oxidase supercomplex from Sulfolobus sp. strain 7: caldariellaquinol -> cytochrome b562 -> Rieske FeS center -> cytochrome a583-aa3 -> molecular oxygen |
Sulfolobus sp. 7 |
2 caldariellaquinone + 2 H2O + n H+[side 2] |
- |
? |
7.1.1.4 | 2,3,5,6-tetrachlorobenzoquinol + oxidized dithiothreitol |
- |
Sulfolobus acidocaldarius |
? |
- |
? |
7.1.1.4 | 4 ferrocytochrome c + O2 + 4 H+ |
- |
Aeropyrum pernix |
4 ferricytochrome c + 2 H2O |
- |
? |
7.1.1.4 | 4 ferrocytochrome c + O2 + 4 H+ |
enzymatic activity is monitored with reduced cytochrome c despite not being the natural substrate. Sulfolobus acidocaldarius does not contain any c-type cytochrome. However, it can be used for in vitro assays of the terminal oxidase moiety in the complex because electrons can be accepted form either sulfocyanin (SoxE) or from SoxH. SoxABCD does not react with cytochrome c. The tested activity is specific for the SoxM complex |
Sulfolobus acidocaldarius |
4 ferricytochrome c + 2 H2O |
- |
? |
7.1.1.4 | caldariella quinol + O2 + n H+/in |
- |
Acidianus ambivalens |
caldariella quinone + H2O + n H+/out |
- |
? |
7.1.1.4 | caldariella quinol + O2 + n H+/in |
isolated aa3 preparation does not oxidize cytochrome c |
Sulfolobus acidocaldarius |
caldariella quinone + H2O + n H+/out |
- |
? |
7.1.1.4 | caldariella quinol + O2 + n H+/in |
isolated aa3 preparation does not oxidize cytochrome c |
Sulfolobus acidocaldarius DSM 639 |
caldariella quinone + H2O + n H+/out |
- |
? |
7.1.1.4 | caldariellaquinol + O2 + n H+/in |
- |
Sulfolobus acidocaldarius |
caldariellaquinone + H2O + n H+/out |
- |
? |
7.1.1.4 | caldariellaquinol + O2 + n H+/in |
- |
Acidianus ambivalens |
caldariellaquinone + H2O + n H+/out |
- |
? |