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COX2_RICBR
ID   COX2_RICBR              Reviewed;         269 AA.
AC   Q1RI44;
DT   20-MAR-2007, integrated into UniProtKB/Swiss-Prot.
DT   16-MAY-2006, sequence version 1.
DT   03-AUG-2022, entry version 110.
DE   RecName: Full=Probable cytochrome c oxidase subunit 2;
DE            EC=7.1.1.9;
DE   AltName: Full=Cytochrome aa3 subunit 2;
DE   AltName: Full=Cytochrome c oxidase polypeptide II;
GN   Name=ctaC; Synonyms=coxB; OrderedLocusNames=RBE_0889;
OS   Rickettsia bellii (strain RML369-C).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rickettsiales;
OC   Rickettsiaceae; Rickettsieae; Rickettsia; belli group.
OX   NCBI_TaxID=336407;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=RML369-C;
RX   PubMed=16703114; DOI=10.1371/journal.pgen.0020076;
RA   Ogata H., La Scola B., Audic S., Renesto P., Blanc G., Robert C.,
RA   Fournier P.-E., Claverie J.-M., Raoult D.;
RT   "Genome sequence of Rickettsia bellii illuminates the role of amoebae in
RT   gene exchanges between intracellular pathogens.";
RL   PLoS Genet. 2:733-744(2006).
CC   -!- FUNCTION: Subunits I and II form the functional core of the enzyme
CC       complex. Electrons originating in cytochrome c are transferred via heme
CC       a and Cu(A) to the binuclear center formed by heme a3 and Cu(B) (By
CC       similarity). {ECO:0000250}.
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   -!- COFACTOR:
CC       Name=Cu cation; Xref=ChEBI:CHEBI:23378; Evidence={ECO:0000250};
CC       Note=Binds a copper A center. {ECO:0000250};
CC   -!- COFACTOR:
CC       Name=heme; Xref=ChEBI:CHEBI:30413; Evidence={ECO:0000250};
CC   -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000305}; Multi-pass membrane
CC       protein {ECO:0000305}.
CC   -!- SIMILARITY: Belongs to the cytochrome c oxidase subunit 2 family.
CC       {ECO:0000305}.
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DR   EMBL; CP000087; ABE04970.1; -; Genomic_DNA.
DR   RefSeq; WP_011477555.1; NC_007940.1.
DR   AlphaFoldDB; Q1RI44; -.
DR   SMR; Q1RI44; -.
DR   STRING; 336407.RBE_0889; -.
DR   EnsemblBacteria; ABE04970; ABE04970; RBE_0889.
DR   KEGG; rbe:RBE_0889; -.
DR   eggNOG; COG1622; Bacteria.
DR   HOGENOM; CLU_036876_2_0_5; -.
DR   OMA; HAFMPIA; -.
DR   OrthoDB; 1654242at2; -.
DR   Proteomes; UP000001951; 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:0070469; C:respirasome; IEA:UniProtKB-KW.
DR   GO; GO:0005507; F:copper ion binding; IEA:InterPro.
DR   GO; GO:0004129; F:cytochrome-c oxidase activity; IEA:UniProtKB-EC.
DR   CDD; cd13912; CcO_II_C; 1.
DR   Gene3D; 1.10.287.90; -; 1.
DR   Gene3D; 2.60.40.420; -; 1.
DR   InterPro; IPR045187; CcO_II.
DR   InterPro; IPR002429; CcO_II-like_C.
DR   InterPro; IPR034210; CcO_II_C.
DR   InterPro; IPR001505; Copper_CuA.
DR   InterPro; IPR008972; Cupredoxin.
DR   InterPro; IPR014222; Cyt_c_oxidase_su2.
DR   InterPro; IPR011759; Cyt_c_oxidase_su2_TM_dom.
DR   InterPro; IPR036257; Cyt_c_oxidase_su2_TM_sf.
DR   PANTHER; PTHR22888; PTHR22888; 1.
DR   Pfam; PF00116; COX2; 1.
DR   Pfam; PF02790; COX2_TM; 1.
DR   SUPFAM; SSF49503; SSF49503; 1.
DR   SUPFAM; SSF81464; SSF81464; 1.
DR   TIGRFAMs; TIGR02866; CoxB; 1.
DR   PROSITE; PS00078; COX2; 1.
DR   PROSITE; PS50857; COX2_CUA; 1.
DR   PROSITE; PS50999; COX2_TM; 1.
PE   3: Inferred from homology;
KW   Cell membrane; Copper; Electron transport; Heme; Iron; Membrane;
KW   Metal-binding; Respiratory chain; Translocase; Transmembrane;
KW   Transmembrane helix; Transport.
FT   CHAIN           1..269
FT                   /note="Probable cytochrome c oxidase subunit 2"
FT                   /id="PRO_0000280886"
FT   TRANSMEM        8..28
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        50..70
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        87..107
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   BINDING         189
FT                   /ligand="Cu cation"
FT                   /ligand_id="ChEBI:CHEBI:23378"
FT                   /ligand_label="A"
FT                   /evidence="ECO:0000255"
FT   BINDING         224
FT                   /ligand="Cu cation"
FT                   /ligand_id="ChEBI:CHEBI:23378"
FT                   /ligand_label="A"
FT                   /evidence="ECO:0000255"
FT   BINDING         228
FT                   /ligand="Cu cation"
FT                   /ligand_id="ChEBI:CHEBI:23378"
FT                   /ligand_label="A"
FT                   /evidence="ECO:0000255"
FT   BINDING         232
FT                   /ligand="Cu cation"
FT                   /ligand_id="ChEBI:CHEBI:23378"
FT                   /ligand_label="A"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   269 AA;  30483 MW;  14E81BB6E77F7FA2 CRC64;
     MYFMKNVITL IGLVLFSSFC FASEPLPWQM GFQPPASPIM EELHKFHDFL LYISTAIVLF
     VAGLLVFVCI KFNARNNPVP AKFSHNILIE IIWTVIPIII LVIIAVPSFR ILRHAEKIPE
     ADLTIKVVGY QWYWHYIYPD HNDIEFDSVM ISDENLKPDQ KRLLDVDNRI VIPENATVRF
     LITASDVIHS FAVPSLGFKI DAVPGRVNET WTRVAKKGVY YGQCSELCGI NHGFMPIAIE
     VVSKEDFDNW VASKNKVAAN GENSKLAAN
 
 
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