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COX3_CORDI
ID   COX3_CORDI              Reviewed;         205 AA.
AC   Q6NGA0;
DT   26-APR-2005, integrated into UniProtKB/Swiss-Prot.
DT   05-JUL-2004, sequence version 1.
DT   03-AUG-2022, entry version 102.
DE   RecName: Full=Cytochrome c oxidase subunit 3;
DE            EC=7.1.1.9;
DE   AltName: Full=Cytochrome aa3 subunit 3;
DE   AltName: Full=Cytochrome c oxidase polypeptide III;
GN   Name=ctaE; OrderedLocusNames=DIP1627;
OS   Corynebacterium diphtheriae (strain ATCC 700971 / NCTC 13129 / Biotype
OS   gravis).
OC   Bacteria; Actinobacteria; Corynebacteriales; Corynebacteriaceae;
OC   Corynebacterium.
OX   NCBI_TaxID=257309;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 700971 / NCTC 13129 / Biotype gravis;
RX   PubMed=14602910; DOI=10.1093/nar/gkg874;
RA   Cerdeno-Tarraga A.-M., Efstratiou A., Dover L.G., Holden M.T.G.,
RA   Pallen M.J., Bentley S.D., Besra G.S., Churcher C.M., James K.D.,
RA   De Zoysa A., Chillingworth T., Cronin A., Dowd L., Feltwell T., Hamlin N.,
RA   Holroyd S., Jagels K., Moule S., Quail M.A., Rabbinowitsch E.,
RA   Rutherford K.M., Thomson N.R., Unwin L., Whitehead S., Barrell B.G.,
RA   Parkhill J.;
RT   "The complete genome sequence and analysis of Corynebacterium diphtheriae
RT   NCTC13129.";
RL   Nucleic Acids Res. 31:6516-6523(2003).
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   -!- SUBUNIT: Associates with subunits I, II and IV to form cytochrome c
CC       oxidase. {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000250}; Multi-pass membrane
CC       protein {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the cytochrome c oxidase subunit 3 family.
CC       {ECO:0000305}.
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DR   EMBL; BX248358; CAE50152.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q6NGA0; -.
DR   SMR; Q6NGA0; -.
DR   STRING; 257309.DIP1627; -.
DR   EnsemblBacteria; CAE50152; CAE50152; DIP1627.
DR   KEGG; cdi:DIP1627; -.
DR   HOGENOM; CLU_044071_1_1_11; -.
DR   OMA; SIYWWGS; -.
DR   Proteomes; UP000002198; Chromosome.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0004129; F:cytochrome-c oxidase activity; IEA:UniProtKB-EC.
DR   GO; GO:0019646; P:aerobic electron transport chain; IEA:InterPro.
DR   Gene3D; 1.20.120.80; -; 1.
DR   InterPro; IPR024791; Cyt_c/ubiquinol_Oxase_su3.
DR   InterPro; IPR000298; Cyt_c_oxidase-like_su3.
DR   InterPro; IPR035973; Cyt_c_oxidase_su3-like_sf.
DR   InterPro; IPR013833; Cyt_c_oxidase_su3_a-hlx.
DR   PANTHER; PTHR11403; PTHR11403; 1.
DR   Pfam; PF00510; COX3; 1.
DR   SUPFAM; SSF81452; SSF81452; 1.
DR   PROSITE; PS50253; COX3; 1.
PE   3: Inferred from homology;
KW   Cell membrane; Membrane; Reference proteome; Translocase; Transmembrane;
KW   Transmembrane helix.
FT   CHAIN           1..205
FT                   /note="Cytochrome c oxidase subunit 3"
FT                   /id="PRO_0000183878"
FT   TRANSMEM        28..48
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        72..92
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        104..124
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        142..162
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        184..204
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   205 AA;  22507 MW;  A401B97D0B9740AA CRC64;
     MTSAIGNKDM AAPQRVAALN RPNMVSVGTI VFLSQELMFF AGLFAMYFTS RANGIGNGSW
     KEGAHHLNVP YALVITIILI SSSVTAQFGV FAAERGDVFG VRRWFSLTIL LGAIFLVGQA
     YEYFHLVEHG MTIQSSVYGS SFFITTGFHA AHVLAGALAF VVVLLRLSKS KFTPAQATAA
     MVVSYYWHFV DVVWIGLFIT IYFIQ
 
 
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