v5.1.0.3
Cicer data from the Legume Information System
Type | Domain |
Description | Ubiquinol oxidase is a multi-chain transmembrane protein located in the cell membrane and one of several aerobic bacterial terminal oxidases [ ]. This complex couples oxidation of reduced quinones to the reduction of molecular oxygen to water, and the pumping of protons to form the proton gradient utilised for ATP production. aa3-type oxidases contain two haem A cofactors as well as copper atoms at the active site.Quinone oxidases feature four subunits in contrast to the 13 subunit bovine cytochrome c oxidase (CcO). Subunits I, II and III of ubiquinol oxidase are homologous to the corresponding subunits in bovine CcO [ , ]. Although not required for catalytic activity, subunit III appears to be involved in assembly of the multimer complex [].This entry represents a domain found in ubiquinol oxidase subunit III. While this signature predominantly matches the ubiquinol oxidase version of the domain, it also includes some cytochrome c oxidase homologues. |
Short Name | Ubiquinol_oxase_su3_dom |