UniProtKB - A0A3G1WZX3 (A0A3G1WZX3_9HYME)
Cytochrome c oxidase subunit 1
COI
Functioni
Component of the cytochrome c oxidase, the last enzyme in the mitochondrial electron transport chain which drives oxidative phosphorylation. The respiratory chain contains 3 multisubunit complexes succinate dehydrogenase (complex II, CII), ubiquinol-cytochrome c oxidoreductase (cytochrome b-c1 complex, complex III, CIII) and cytochrome c oxidase (complex IV, CIV), that cooperate to transfer electrons derived from NADH and succinate to molecular oxygen, creating an electrochemical gradient over the inner membrane that drives transmembrane transport and the ATP synthase. Cytochrome c oxidase is the component of the respiratory chain that catalyzes the reduction of oxygen to water. Electrons originating from reduced cytochrome c in the intermembrane space (IMS) are transferred via the dinuclear copper A center (CU(A)) of subunit 2 and heme A of subunit 1 to the active site in subunit 1, a binuclear center (BNC) formed by heme A3 and copper B (CU(B)). The BNC reduces molecular oxygen to 2 water molecules using 4 electrons from cytochrome c in the IMS and 4 protons from the mitochondrial matrix.
UniRule annotationCatalytic activityi
- 4 Fe(II)-[cytochrome c] + 8 H+(in) + O2 = 4 Fe(III)-[cytochrome c] + 4 H+(out) + 2 H2OARBA annotationEC:7.1.1.9ARBA annotationThis reaction proceeds in the forwardARBA annotation direction.
: oxidative phosphorylation Pathwayi
This protein is involved in the pathway oxidative phosphorylation, which is part of Energy metabolism.UniRule annotationARBA annotationView all proteins of this organism that are known to be involved in the pathway oxidative phosphorylation and in Energy metabolism.
GO - Molecular functioni
- cytochrome-c oxidase activity Source: UniProtKB-EC
- heme binding Source: InterPro
- metal ion binding Source: UniProtKB-KW
GO - Biological processi
- oxidative phosphorylation Source: UniProtKB-UniPathway
Keywordsi
Biological process | Electron transport, Respiratory chainUniRule annotation, Transport |
Ligand | CopperUniRule annotation, HemeUniRule annotation, Iron, Metal-binding |
Enzyme and pathway databases
UniPathwayi | UPA00705 |
Names & Taxonomyi
Protein namesi | Recommended name: Cytochrome c oxidase subunit 1UniRule annotationARBA annotation (EC:7.1.1.9UniRule annotation) |
Gene namesi | Name:COIImported |
Encoded oni | MitochondrionImported |
Organismi | Cosmocomoidea morrilliImported |
Taxonomic identifieri | 273962 [NCBI] |
Taxonomic lineagei | Eukaryota › Metazoa › Ecdysozoa › Arthropoda › Hexapoda › Insecta › Pterygota › Neoptera › Endopterygota › Hymenoptera › Apocrita › Parasitoida › Chalcidoidea › Mymaridae › Cosmocomoidea |
Subcellular locationi
Mitochondrion
- Mitochondrion inner membrane UniRule annotation; Multi-pass membrane protein UniRule annotation
Mitochondrion
- mitochondrial inner membrane Source: UniProtKB-SubCell
Other locations
- integral component of membrane Source: UniProtKB-KW
- respirasome Source: UniProtKB-KW
Topology
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Transmembranei | 6 – 24 | HelicalSequence analysisAdd BLAST | 19 | |
Transmembranei | 36 – 62 | HelicalSequence analysisAdd BLAST | 27 | |
Transmembranei | 82 – 103 | HelicalSequence analysisAdd BLAST | 22 | |
Transmembranei | 115 – 143 | HelicalSequence analysisAdd BLAST | 29 |
Keywords - Cellular componenti
Membrane, Mitochondrion, Mitochondrion inner membraneUniRule annotationInteractioni
Subunit structurei
Component of the cytochrome c oxidase (complex IV, CIV), a multisubunit enzyme composed of a catalytic core of 3 subunits and several supernumerary subunits. The complex exists as a monomer or a dimer and forms supercomplexes (SCs) in the inner mitochondrial membrane with ubiquinol-cytochrome c oxidoreductase (cytochrome b-c1 complex, complex III, CIII).
ARBA annotationStructurei
Family & Domainsi
Domains and Repeats
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Domaini | 1 – 151 | COX1InterPro annotationAdd BLAST | 151 |
Sequence similaritiesi
Keywords - Domaini
Transmembrane, Transmembrane helixSequence analysisFamily and domain databases
Gene3Di | 1.20.210.10, 1 hit |
InterProi | View protein in InterPro IPR023616, Cyt_c_oxase-like_su1_dom IPR036927, Cyt_c_oxase-like_su1_sf IPR000883, Cyt_C_Oxase_1 |
PANTHERi | PTHR10422, PTHR10422, 1 hit |
Pfami | View protein in Pfam PF00115, COX1, 1 hit |
PRINTSi | PR01165, CYCOXIDASEI |
SUPFAMi | SSF81442, SSF81442, 1 hit |
PROSITEi | View protein in PROSITE PS50855, COX1, 1 hit |
i Sequence
Sequence statusi: Fragment.
10 20 30 40 50
FFFVMPVMMG GFGNYLVPLM LSVPDMAFPR MNNMSFWLLP PSIILLMSSM
60 70 80 90 100
FVGMGSGTGW TVYPPLSMNL SHSGPSVDLS IFSLHIAGAS SIMASINFIS
110 120 130 140 150
TTINMSMFKM EKVTLFCWSL MLTAILLLLS LPVLAGAITM LLFDRNLNTS
F
Experimental Info
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Non-terminal residuei | 1 | Imported | 1 | |
Non-terminal residuei | 151 | Imported | 1 |
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | MG346871 Genomic DNA Translation: AYK40197.1 MG348109 Genomic DNA Translation: AYK41435.1 MG349114 Genomic DNA Translation: AYK42440.1 MG349165 Genomic DNA Translation: AYK42491.1 MG479884 Genomic DNA Translation: AYP44303.1 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | MG346871 Genomic DNA Translation: AYK40197.1 MG348109 Genomic DNA Translation: AYK41435.1 MG349114 Genomic DNA Translation: AYK42440.1 MG349165 Genomic DNA Translation: AYK42491.1 MG479884 Genomic DNA Translation: AYP44303.1 |
3D structure databases
ModBasei | Search... |
SWISS-MODEL-Workspacei | Submit a new modelling project... |
Enzyme and pathway databases
UniPathwayi | UPA00705 |
Family and domain databases
Gene3Di | 1.20.210.10, 1 hit |
InterProi | View protein in InterPro IPR023616, Cyt_c_oxase-like_su1_dom IPR036927, Cyt_c_oxase-like_su1_sf IPR000883, Cyt_C_Oxase_1 |
PANTHERi | PTHR10422, PTHR10422, 1 hit |
Pfami | View protein in Pfam PF00115, COX1, 1 hit |
PRINTSi | PR01165, CYCOXIDASEI |
SUPFAMi | SSF81442, SSF81442, 1 hit |
PROSITEi | View protein in PROSITE PS50855, COX1, 1 hit |
MobiDBi | Search... |
Entry informationi
Entry namei | A0A3G1WZX3_9HYME | |
Accessioni | A0A3G1WZX3Primary (citable) accession number: A0A3G1WZX3 | |
Entry historyi | Integrated into UniProtKB/TrEMBL: | February 13, 2019 |
Last sequence update: | February 13, 2019 | |
Last modified: | May 25, 2022 | |
This is version 14 of the entry and version 1 of the sequence. See complete history. | ||
Entry statusi | Unreviewed (UniProtKB/TrEMBL) |