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IPR011759

Description

IPR011759 is a Cytochrome C oxidase subunit II, transmembrane domain.

<p>Cytochrome c oxidase ([ec:7.1.1.9]) [[cite:PUB00000581], [cite:PUB00002253]] is an oligomeric enzymatic complex which is a component of the respiratory chain and is involved in the transfer of electrons from cytochrome c to oxygen. In eukaryotes this enzyme complex is located in the mitochondrial inner membrane; in aerobic prokaryotes it is found in the plasma membrane. The enzyme complex consists of 3-4 subunits (prokaryotes) to up to 13 polypeptides (mammals).</p> <p>Subunit 2 (CO II) transfers the electrons from cytochrome c to the catalytic subunit 1. It contains two adjacent transmembrane regions in its N terminus and the major part of the protein is exposed to the periplasmic or to the mitochondrial intermembrane space, respectively. CO II provides the substrate-binding site and contains a copper centre called Cu(A) (see [interpro:IPR001505]), probably the primary acceptor in cytochrome c oxidase. An exception is the corresponding subunit of the cbb3-type oxidase which lacks the copper A redox-centre. Several bacterial CO II have a C-terminal extension that contains a covalently bound haem c.</p> <p>The N-terminal domain of cytochrome C oxidase contains two transmembrane α-helices [[cite:PUB00005218]].</p>

This description is obtained from EB-eye REST.

Associated GO terms

GO predictions are based solely on the InterPro-to-GO mappings published by EMBL-EBI, which are in turn based on the mapping of predicted domains to the InterPro dataset. The InterPro-to-GO mapping was last updated on , while the GO metadata was last updated on .

GO term Namespace Name Definition Relationships
Cellular component Integral component of membrane 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.
Biological process Electron transport chain 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.

Associated Lotus transcripts 4

Transcript Name Description Predicted domains Domain count
Mitochondrial cytochrome c oxidase subunit II (mitochondrion) [Vicia faba] gi|442803102|gb|AGC78837.1| 25
Mitochondrial cytochrome c oxidase subunit II (mitochondrion) [Vicia faba] gi|442803102|gb|AGC78837.1| 25
Mitochondrial cytochrome c oxidase subunit II (mitochondrion) [Vicia faba] gi|442803102|gb|AGC78837.1| 25
Cytochrome c oxidase subunit 2; TAIR: ATMG00160.1 cytochrome oxidase 2 (ChrM); Swiss-Prot: sp|P05491|COX2_SOYBN Cytochrome c oxidase subunit 2; TrEMBL-Plants: tr|R4IUC9|R4IUC9_VICFA Cytochrome c oxidase subunit 2; Found in the gene: LotjaGi5g1v0122800 26

Co-occuring domains 1

A list of co-occurring predicted domains within the L. japonicus gene space:

Predicted domain Source Observations Saturation (%)
cd13912 CDD 1 25.00