ID   A0A7S7YM02_9TELE        Unreviewed;       209 AA.
AC   A0A7S7YM02;
DT   02-JUN-2021, integrated into UniProtKB/TrEMBL.
DT   02-JUN-2021, sequence version 1.
DT   02-OCT-2024, entry version 17.
DE   RecName: Full=Cytochrome c oxidase subunit 1 {ECO:0000256|ARBA:ARBA00015947, ECO:0000256|RuleBase:RU000369};
DE            EC=7.1.1.9 {ECO:0000256|ARBA:ARBA00012949, ECO:0000256|RuleBase:RU000369};
DE   Flags: Fragment;
GN   Name=COX1 {ECO:0000313|EMBL:QPB69879.1};
OS   Capoeta damascina.
OG   Mitochondrion {ECO:0000313|EMBL:QPB69879.1}.
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC   Actinopterygii; Neopterygii; Teleostei; Ostariophysi; Cypriniformes;
OC   Cyprinidae; Barbinae; Capoeta.
OX   NCBI_TaxID=643318 {ECO:0000313|EMBL:QPB69879.1};
RN   [1] {ECO:0000313|EMBL:QPB69879.1}
RP   NUCLEOTIDE SEQUENCE.
RC   STRAIN=G6 {ECO:0000313|EMBL:QPB69879.1};
RA   Agha G.F., Abdullah S.M.;
RT   "DNA barcoding of the Cyprindae from Greater Zab River_Gwer in Kurdistan
RT   Region.";
RL   Submitted (NOV-2020) 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=Cu cation; Xref=ChEBI:CHEBI:23378;
CC         Evidence={ECO:0000256|ARBA:ARBA00001935};
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   -!- SUBCELLULAR LOCATION: Membrane {ECO:0000256|ARBA:ARBA00004141}; Multi-
CC       pass membrane protein {ECO:0000256|ARBA:ARBA00004141}. Mitochondrion
CC       inner membrane {ECO:0000256|ARBA:ARBA00004448,
CC       ECO:0000256|RuleBase:RU000369}; Multi-pass membrane protein
CC       {ECO:0000256|ARBA:ARBA00004448, 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; MW250386; QPB69879.1; -; Genomic_DNA.
DR   AlphaFoldDB; A0A7S7YM02; -.
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:InterPro.
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|ARBA:ARBA00023008, 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:QPB69879.1};
KW   Mitochondrion inner membrane {ECO:0000256|RuleBase:RU000369};
KW   Respiratory chain {ECO:0000256|RuleBase:RU000369};
KW   Sodium {ECO:0000256|ARBA:ARBA00023053};
KW   Transmembrane {ECO:0000256|ARBA:ARBA00022692,
KW   ECO:0000256|RuleBase:RU000369};
KW   Transmembrane helix {ECO:0000256|ARBA:ARBA00022989,
KW   ECO:0000256|SAM:Phobius}; Transport {ECO:0000256|RuleBase:RU000369}.
FT   TRANSMEM        23..53
FT                   /note="Helical"
FT                   /evidence="ECO:0000256|SAM:Phobius"
FT   TRANSMEM        74..98
FT                   /note="Helical"
FT                   /evidence="ECO:0000256|SAM:Phobius"
FT   TRANSMEM        118..141
FT                   /note="Helical"
FT                   /evidence="ECO:0000256|SAM:Phobius"
FT   TRANSMEM        153..180
FT                   /note="Helical"
FT                   /evidence="ECO:0000256|SAM:Phobius"
FT   DOMAIN          1..209
FT                   /note="Cytochrome oxidase subunit I profile"
FT                   /evidence="ECO:0000259|PROSITE:PS50855"
FT   NON_TER         1
FT                   /evidence="ECO:0000313|EMBL:QPB69879.1"
FT   NON_TER         209
FT                   /evidence="ECO:0000313|EMBL:QPB69879.1"
SQ   SEQUENCE   209 AA;  22412 MW;  33F23BE227FB3845 CRC64;
     TALSLLIRAE LSQPGSLLGD DQIYNVIVTA HAFVMIFFMV MPILIGGFGN WLVPLMIGAP
     DMAFPRMNNM SFWLLPPSFL LLLASSGVEA GAGTGWTVYP PLSGNLAHAG ASVDLTIFSL
     HLAGVSSILG AINFITTTIN MKPPAISQYQ TPLFVWSVLV TAVLLLLSLP VLAAGITMLL
     TDRNLNTTFF DPAGGGDPIL YQHLFWFFG
//