The name of this superfamily has been modified since the most recent official CATH+ release (v4_2_0). At the point of the last release, this superfamily was named:

"
Cupredoxins - blue copper proteins
".

Functional Families

Overview of the Structural Clusters (SC) and Functional Families within this CATH Superfamily. Clusters with a representative structure are represented by a filled circle.
« Back to all FunFams

FunFam 24206: Ubiquinol oxidase, subunit II

Please note: GO annotations are assigned to the full protein sequence rather than individual protein domains. Since a given protein can contain multiple domains, it is possible that some of the annotations below come from additional domains that occur in the same protein, but have been classified elsewhere in CATH.

There are 11 GO terms relating to "molecular function"

The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.
GO Term Annotations Evidence
Oxidoreductase activity, acting on diphenols and related substances as donors, oxygen as acceptor GO:0016682
Catalysis of an oxidation-reduction (redox) reaction in which a diphenol, or related compound, acts as a hydrogen or electron donor and reduces oxygen.
2 P34957 (/ISS) Q81V01 (/ISS)
Cytochrome-c oxidase activity GO:0004129
Catalysis of the reaction: 4 ferrocytochrome c + O2 + 4 H+ = 4 ferricytochrome c + 2 H2O.
1 Q74GM4 (/ISS)
Electron carrier activity GO:0009055
Any molecular entity that serves as an electron acceptor and electron donor in an electron transport chain. An electron transport chain is a process in which a series of electron carriers operate together to transfer electrons from donors to any of several different terminal electron acceptors to generate a transmembrane electrochemical gradient.
1 P0ABJ1 (/IDA)
Electron carrier activity GO:0009055
Any molecular entity that serves as an electron acceptor and electron donor in an electron transport chain. An electron transport chain is a process in which a series of electron carriers operate together to transfer electrons from donors to any of several different terminal electron acceptors to generate a transmembrane electrochemical gradient.
1 Q81V01 (/ISS)
Cytochrome bo3 ubiquinol oxidase activity GO:0009486
Catalysis of the reaction: 2 ubiquinol + O2 + 4 H+ = 2 ubiquinone + 2 H2O + 4 H+
1 P0ABJ1 (/IDA)
Heme-copper terminal oxidase activity GO:0015002
Catalysis of the four-electron reduction of dioxygen (O2) to water, coupled to generation of a proton electrochemical gradient across a membrane.
1 Q81V01 (/ISS)
Hydrogen ion transmembrane transporter activity GO:0015078
Enables the transfer of hydrogen ions from one side of a membrane to the other.
1 P0ABJ1 (/IDA)
Hydrogen ion transmembrane transporter activity GO:0015078
Enables the transfer of hydrogen ions from one side of a membrane to the other.
1 Q81V01 (/ISS)
Oxidoreduction-driven active transmembrane transporter activity GO:0015453
Primary active transport of a solute across a membrane, driven by exothermic flow of electrons from a reduced substrate to an oxidized substrate. Primary active transport is catalysis of the transport of a solute across a membrane, up the solute's concentration gradient, by binding the solute and undergoing a series of conformational changes. Transport works equally well in either direction and is driven by a primary energy source.
1 P0ABJ1 (/IDA)
Oxidoreductase activity, acting on diphenols and related substances as donors, oxygen as acceptor GO:0016682
Catalysis of an oxidation-reduction (redox) reaction in which a diphenol, or related compound, acts as a hydrogen or electron donor and reduces oxygen.
1 Q81HT3 (/IDA)
Ubiquinone binding GO:0048039
Interacting selectively and non-covalently with ubiquinone, a quinone derivative with a tail of isoprene units.
1 P0ABJ1 (/IDA)

There are 8 GO terms relating to "biological process"

The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.
GO Term Annotations Evidence
ATP synthesis coupled electron transport GO:0042773
The transfer of electrons through a series of electron donors and acceptors, generating energy that is ultimately used for synthesis of ATP.
2 P34957 (/ISS) Q81V01 (/ISS)
Oxidative phosphorylation GO:0006119
The phosphorylation of ADP to ATP that accompanies the oxidation of a metabolite through the operation of the respiratory chain. Oxidation of compounds establishes a proton gradient across the membrane, providing the energy for ATP synthesis.
1 Q81V01 (/ISS)
Aerobic respiration GO:0009060
The enzymatic release of energy from inorganic and organic compounds (especially carbohydrates and fats) which requires oxygen as the terminal electron acceptor.
1 P0ABJ1 (/IEP)
Aerobic respiration GO:0009060
The enzymatic release of energy from inorganic and organic compounds (especially carbohydrates and fats) which requires oxygen as the terminal electron acceptor.
1 P0ABJ1 (/IMP)
Electron transport coupled proton transport GO:0015990
The transport of protons against an electrochemical gradient, using energy from electron transport.
1 P0ABJ1 (/IDA)
Aerobic electron transport chain GO:0019646
A process in which a series of electron carriers operate together to transfer electrons from donors such as NADH and FADH2 to oxygen to generate a transmembrane electrochemical gradient.
1 P0ABJ1 (/IDA)
ATP synthesis coupled electron transport GO:0042773
The transfer of electrons through a series of electron donors and acceptors, generating energy that is ultimately used for synthesis of ATP.
1 Q81HT3 (/IDA)
Cellular response to iron ion GO:0071281
Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an iron ion stimulus.
1 A0A0F6AXR9 (/EXP)

There are 6 GO terms relating to "cellular component"

The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.
GO Term Annotations Evidence
Plasma membrane GO:0005886
The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
1 P0ABJ1 (/IDA)
Integral component of plasma membrane GO:0005887
The component of the plasma membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
1 P0ABJ1 (/IDA)
Integral component of plasma membrane GO:0005887
The component of the plasma membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
1 P0ABJ1 (/ISM)
Cytochrome o ubiquinol oxidase complex GO:0009319
A protein complex that possesses cytochrome o ubiquinol oxidase activity; consists of four polypeptide subunits and associated prosthetic groups.
1 P0ABJ1 (/IDA)
Integral component of membrane GO:0016021
The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
1 Q81V01 (/ISS)
Integral component of external side of plasma membrane GO:0071575
The component of the plasma membrane consisting of the gene products that penetrate only the external side of the membrane.
1 P0ABJ1 (/IDA)
CATH-Gene3D is a Global Biodata Core Resource Learn more...