ID   E2DQN9_9CHON            Unreviewed;       218 AA.
AC   E2DQN9;
DT   30-NOV-2010, integrated into UniProtKB/TrEMBL.
DT   30-NOV-2010, sequence version 1.
DT   17-JUN-2020, entry version 35.
DE   RecName: Full=Cytochrome c oxidase subunit 1 {ECO:0000256|RuleBase:RU000369};
DE            EC=7.1.1.9 {ECO:0000256|RuleBase:RU000369};
DE   Flags: Fragment;
GN   Name=COI {ECO:0000313|EMBL:ADK26838.1};
OS   Odontaspis ferox (smalltooth sand tiger).
OG   Mitochondrion {ECO:0000313|EMBL:ADK26838.1}.
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Chondrichthyes;
OC   Elasmobranchii; Galeomorphii; Galeoidea; Lamniformes; Odontaspididae;
OC   Odontaspis.
OX   NCBI_TaxID=57989 {ECO:0000313|EMBL:ADK26838.1};
RN   [1] {ECO:0000313|EMBL:ADK26838.1}
RP   NUCLEOTIDE SEQUENCE.
RC   STRAIN=S53 {ECO:0000313|EMBL:ADK26838.1};
RX   PubMed=20457263; DOI=10.1016/j.ympev.2010.04.042;
RA   Straube N., Iglesias S.P., Sellos D.Y., Kriwet J., Schliewen U.K.;
RT   "Molecular phylogeny and node time estimation of bioluminescent Lantern
RT   Sharks (Elasmobranchii: Etmopteridae).";
RL   Mol. Phylogenet. Evol. 56:905-917(2010).
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] + 4 H(+) + O2 = 4 [Fe(III)cytochrome c]
CC         + 2 H2O; Xref=Rhea:RHEA:11436, Rhea:RHEA-COMP:10350, Rhea:RHEA-
CC         COMP:14399, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:15379,
CC         ChEBI:CHEBI:29033, ChEBI:CHEBI:29034; EC=7.1.1.9;
CC         Evidence={ECO:0000256|RuleBase:RU000369};
CC   -!- PATHWAY: Energy metabolism; oxidative phosphorylation.
CC       {ECO:0000256|RuleBase:RU000369}.
CC   -!- SUBCELLULAR LOCATION: Mitochondrion inner membrane
CC       {ECO:0000256|RuleBase:RU000369}; Multi-pass membrane protein
CC       {ECO:0000256|RuleBase:RU000369}.
CC   -!- SIMILARITY: Belongs to the heme-copper respiratory oxidase family.
CC       {ECO:0000256|RuleBase:RU000369}.
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DR   EMBL; GU130673; ADK26838.1; -; Genomic_DNA.
DR   UniPathway; UPA00705; -.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
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:0009060; P:aerobic respiration; IEA:InterPro.
DR   GO; GO:0006119; P:oxidative phosphorylation; IEA:UniProtKB-UniPathway.
DR   Gene3D; 1.20.210.10; -; 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; PTHR10422; 1.
DR   Pfam; PF00115; COX1; 1.
DR   PRINTS; PR01165; CYCOXIDASEI.
DR   SUPFAM; SSF81442; SSF81442; 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:ADK26838.1};
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        6..24
FT                   /note="Helical"
FT                   /evidence="ECO:0000256|SAM:Phobius"
FT   TRANSMEM        36..58
FT                   /note="Helical"
FT                   /evidence="ECO:0000256|SAM:Phobius"
FT   TRANSMEM        92..112
FT                   /note="Helical"
FT                   /evidence="ECO:0000256|SAM:Phobius"
FT   TRANSMEM        132..154
FT                   /note="Helical"
FT                   /evidence="ECO:0000256|SAM:Phobius"
FT   TRANSMEM        166..193
FT                   /note="Helical"
FT                   /evidence="ECO:0000256|SAM:Phobius"
FT   DOMAIN          1..218
FT                   /note="COX1"
FT                   /evidence="ECO:0000259|PROSITE:PS50855"
FT   NON_TER         1
FT                   /evidence="ECO:0000313|EMBL:ADK26838.1"
FT   NON_TER         218
FT                   /evidence="ECO:0000313|EMBL:ADK26838.1"
SQ   SEQUENCE   218 AA;  23311 MW;  24F96DF5DEA04663 CRC64;
     LYLIFGAWAG MVGMALSLLI RAELGQPGSL LGDDQIYNVI VTAHAFVMIF FMVMPVMIGG
     FGNWLVPLMI GAPDMAFPRM NNMSFWLLPP SFLLLLASAG VEAGAGTGWT VYPPLAGNLA
     HAGASVDLAI FSLHLAGISS ILASINFITT IINMKPPAIS QYQTPLFVWS ILVTTILLLL
     SLPVLAAGIT MLLTDRNLNT TFFDPAGGGD PILYQHLF
//