ID   COX3_MYCLE              Reviewed;         202 AA.
AC   O69582;
DT   26-APR-2005, integrated into UniProtKB/Swiss-Prot.
DT   01-AUG-1998, sequence version 1.
DT   25-MAY-2022, entry version 118.
DE   RecName: Full=Probable 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=ML0882;
OS   Mycobacterium leprae (strain TN).
OC   Bacteria; Actinobacteria; Corynebacteriales; Mycobacteriaceae;
OC   Mycobacterium.
OX   NCBI_TaxID=272631;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=TN;
RX   PubMed=11234002; DOI=10.1038/35059006;
RA   Cole S.T., Eiglmeier K., Parkhill J., James K.D., Thomson N.R.,
RA   Wheeler P.R., Honore N., Garnier T., Churcher C.M., Harris D.E.,
RA   Mungall K.L., Basham D., Brown D., Chillingworth T., Connor R.,
RA   Davies R.M., Devlin K., Duthoy S., Feltwell T., Fraser A., Hamlin N.,
RA   Holroyd S., Hornsby T., Jagels K., Lacroix C., Maclean J., Moule S.,
RA   Murphy L.D., Oliver K., Quail M.A., Rajandream M.A., Rutherford K.M.,
RA   Rutter S., Seeger K., Simon S., Simmonds M., Skelton J., Squares R.,
RA   Squares S., Stevens K., Taylor K., Whitehead S., Woodward J.R.,
RA   Barrell B.G.;
RT   "Massive gene decay in the leprosy bacillus.";
RL   Nature 409:1007-1011(2001).
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   -!- 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; AL022602; CAA18701.1; -; Genomic_DNA.
DR   EMBL; AL583920; CAC31263.1; -; Genomic_DNA.
DR   PIR; D87019; D87019.
DR   RefSeq; NP_301668.1; NC_002677.1.
DR   RefSeq; WP_010907992.1; NC_002677.1.
DR   AlphaFoldDB; O69582; -.
DR   SMR; O69582; -.
DR   STRING; 272631.ML0882; -.
DR   EnsemblBacteria; CAC31263; CAC31263; CAC31263.
DR   KEGG; mle:ML0882; -.
DR   PATRIC; fig|272631.5.peg.1613; -.
DR   Leproma; ML0882; -.
DR   eggNOG; COG1845; Bacteria.
DR   HOGENOM; CLU_044071_1_1_11; -.
DR   OMA; SIYWWGS; -.
DR   Proteomes; UP000000806; 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..202
FT                   /note="Probable cytochrome c oxidase subunit 3"
FT                   /id="PRO_0000183882"
FT   TRANSMEM        30..50
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        69..89
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        101..121
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        141..161
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        178..198
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   202 AA;  22377 MW;  1BAB52B96C136B69 CRC64;
     MTSTVGTLGT AITSRVHSLN RPNMVSVGTV VWLSSELMFF AGLFAMYFTA RAQAGGKWPP
     STELNLYQAV PVTLVLIASS FTCQMGVFSA ERGDVFGLRR WYVITLLMGL FFVLGQGYEY
     YHLITHGTTI PSSAYGSVFY LATGFHGLHV TGGLIAFIFL LARTTMSKFT PAQATASIVV
     SYYWHFVDIV WIALFTVIYF IR