ID   A0A2H4KBY6_9HEMI        Unreviewed;       208 AA.
AC   A0A2H4KBY6;
DT   28-FEB-2018, integrated into UniProtKB/TrEMBL.
DT   28-FEB-2018, sequence version 1.
DT   27-MAR-2024, entry version 22.
DE   RecName: Full=Cytochrome c oxidase subunit 1 {ECO:0000256|ARBA:ARBA00015947, ECO:0000256|RuleBase:RU000369};
DE            EC=7.1.1.9 {ECO:0000256|RuleBase:RU000369};
DE   Flags: Fragment;
GN   Name=COI {ECO:0000313|EMBL:AST10498.1};
OS   Pseudococcus baliteus.
OG   Mitochondrion {ECO:0000313|EMBL:AST10498.1}.
OC   Eukaryota; Metazoa; Ecdysozoa; Arthropoda; Hexapoda; Insecta; Pterygota;
OC   Neoptera; Paraneoptera; Hemiptera; Sternorrhyncha; Coccoidea;
OC   Pseudococcidae; Pseudococcus.
OX   NCBI_TaxID=681293 {ECO:0000313|EMBL:AST10498.1};
RN   [1] {ECO:0000313|EMBL:AST10498.1}
RP   NUCLEOTIDE SEQUENCE.
RA   Ren J.-M., Ashfaq M., Hu X.-N., Ma J., Hebert P.D.N.;
RT   "Barcode Index Numbers Expedite Quarantine Inspections and Aid the
RT   Interception of Nonindigenous Mealybugs (Pseudococcidae).";
RL   Submitted (DEC-2016) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Component of the cytochrome c oxidase, the last enzyme in the
CC       mitochondrial electron transport chain which drives oxidative
CC       phosphorylation. The respiratory chain contains 3 multisubunit
CC       complexes succinate dehydrogenase (complex II, CII), ubiquinol-
CC       cytochrome c oxidoreductase (cytochrome b-c1 complex, complex III,
CC       CIII) and cytochrome c oxidase (complex IV, CIV), that cooperate to
CC       transfer electrons derived from NADH and succinate to molecular oxygen,
CC       creating an electrochemical gradient over the inner membrane that
CC       drives transmembrane transport and the ATP synthase. Cytochrome c
CC       oxidase is the component of the respiratory chain that catalyzes the
CC       reduction of oxygen to water. Electrons originating from reduced
CC       cytochrome c in the intermembrane space (IMS) are transferred via the
CC       dinuclear copper A center (CU(A)) of subunit 2 and heme A of subunit 1
CC       to the active site in subunit 1, a binuclear center (BNC) formed by
CC       heme A3 and copper B (CU(B)). The BNC reduces molecular oxygen to 2
CC       water molecules using 4 electrons from cytochrome c in the IMS and 4
CC       protons from the mitochondrial matrix. {ECO:0000256|RuleBase:RU000369}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=4 Fe(II)-[cytochrome c] + 8 H(+)(in) + O2 = 4 Fe(III)-
CC         [cytochrome c] + 4 H(+)(out) + 2 H2O; Xref=Rhea:RHEA:11436,
CC         Rhea:RHEA-COMP:10350, Rhea:RHEA-COMP:14399, ChEBI:CHEBI:15377,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:15379, ChEBI:CHEBI:29033,
CC         ChEBI:CHEBI:29034; EC=7.1.1.9;
CC         Evidence={ECO:0000256|ARBA:ARBA00029331};
CC       PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:11437;
CC         Evidence={ECO:0000256|ARBA:ARBA00029331};
CC   -!- COFACTOR:
CC       Name=heme; Xref=ChEBI:CHEBI:30413;
CC         Evidence={ECO:0000256|ARBA:ARBA00001971};
CC   -!- PATHWAY: Energy metabolism; oxidative phosphorylation.
CC       {ECO:0000256|ARBA:ARBA00004673, ECO:0000256|RuleBase:RU000369}.
CC   -!- SUBUNIT: Component of the cytochrome c oxidase (complex IV, CIV), a
CC       multisubunit enzyme composed of a catalytic core of 3 subunits and
CC       several supernumerary subunits. The complex exists as a monomer or a
CC       dimer and forms supercomplexes (SCs) in the inner mitochondrial
CC       membrane with ubiquinol-cytochrome c oxidoreductase (cytochrome b-c1
CC       complex, complex III, CIII). {ECO:0000256|ARBA:ARBA00011164}.
CC   -!- SUBCELLULAR LOCATION: Mitochondrion inner membrane
CC       {ECO:0000256|ARBA:ARBA00004448, ECO:0000256|RuleBase:RU000369}; Multi-
CC       pass membrane protein {ECO:0000256|ARBA:ARBA00004448,
CC       ECO:0000256|RuleBase:RU000369}.
CC   -!- SIMILARITY: Belongs to the heme-copper respiratory oxidase family.
CC       {ECO:0000256|ARBA:ARBA00009578, ECO:0000256|RuleBase:RU000369}.
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DR   EMBL; KY372644; AST10498.1; -; Genomic_DNA.
DR   AlphaFoldDB; A0A2H4KBY6; -.
DR   UniPathway; UPA00705; -.
DR   GO; GO:0005743; C:mitochondrial inner membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0070469; C:respirasome; IEA:UniProtKB-KW.
DR   GO; GO:0004129; F:cytochrome-c oxidase activity; IEA:UniProtKB-EC.
DR   GO; GO:0020037; F:heme binding; IEA:InterPro.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0006119; P:oxidative phosphorylation; IEA:UniProtKB-UniPathway.
DR   Gene3D; 1.20.210.10; Cytochrome c oxidase-like, subunit I domain; 1.
DR   InterPro; IPR023616; Cyt_c_oxase-like_su1_dom.
DR   InterPro; IPR036927; Cyt_c_oxase-like_su1_sf.
DR   InterPro; IPR000883; Cyt_C_Oxase_1.
DR   PANTHER; PTHR10422; CYTOCHROME C OXIDASE SUBUNIT 1; 1.
DR   PANTHER; PTHR10422:SF18; CYTOCHROME C OXIDASE SUBUNIT 1; 1.
DR   Pfam; PF00115; COX1; 1.
DR   PRINTS; PR01165; CYCOXIDASEI.
DR   SUPFAM; SSF81442; Cytochrome c oxidase subunit I-like; 1.
DR   PROSITE; PS50855; COX1; 1.
PE   3: Inferred from homology;
KW   Copper {ECO:0000256|RuleBase:RU000369};
KW   Electron transport {ECO:0000256|RuleBase:RU000369};
KW   Heme {ECO:0000256|RuleBase:RU000369}; Iron {ECO:0000256|RuleBase:RU000369};
KW   Membrane {ECO:0000256|RuleBase:RU000369, ECO:0000256|SAM:Phobius};
KW   Metal-binding {ECO:0000256|RuleBase:RU000369};
KW   Mitochondrion {ECO:0000256|RuleBase:RU000369, ECO:0000313|EMBL:AST10498.1};
KW   Mitochondrion inner membrane {ECO:0000256|RuleBase:RU000369};
KW   Respiratory chain {ECO:0000256|RuleBase:RU000369};
KW   Transmembrane {ECO:0000256|RuleBase:RU000369, ECO:0000256|SAM:Phobius};
KW   Transmembrane helix {ECO:0000256|SAM:Phobius};
KW   Transport {ECO:0000256|RuleBase:RU000369}.
FT   TRANSMEM        28..55
FT                   /note="Helical"
FT                   /evidence="ECO:0000256|SAM:Phobius"
FT   TRANSMEM        76..94
FT                   /note="Helical"
FT                   /evidence="ECO:0000256|SAM:Phobius"
FT   TRANSMEM        114..144
FT                   /note="Helical"
FT                   /evidence="ECO:0000256|SAM:Phobius"
FT   TRANSMEM        156..184
FT                   /note="Helical"
FT                   /evidence="ECO:0000256|SAM:Phobius"
FT   DOMAIN          1..208
FT                   /note="Cytochrome oxidase subunit I profile"
FT                   /evidence="ECO:0000259|PROSITE:PS50855"
FT   NON_TER         1
FT                   /evidence="ECO:0000313|EMBL:AST10498.1"
FT   NON_TER         208
FT                   /evidence="ECO:0000313|EMBL:AST10498.1"
SQ   SEQUENCE   208 AA;  24092 MW;  FFFEDAE461B77BDF CRC64;
     WSGMMGLSMS FIIRIELMNL NNNFNNTMIY YMMITLHAFI MIFFMTMPII IGSLSNWLLP
     LMLSSSDLIF PRLNNFSFWL LIPSMLFLML NMLLNNNINT GWTLYPPLIN QNFITLNFII
     FSLHLNGISS IFSSINFISS IFIINNNNFF INNLSLYIWS IIITTILLII SIPILSSAIT
     MIILDNNLNM NFFNPMGNGN PILYQHLF
//