ID Q5L113_GEOKA Unreviewed; 356 AA.
AC Q5L113;
DT 01-FEB-2005, integrated into UniProtKB/TrEMBL.
DT 01-FEB-2005, sequence version 1.
DT 27-MAR-2024, entry version 126.
DE RecName: Full=Cytochrome c oxidase subunit 2 {ECO:0000256|RuleBase:RU004024};
DE EC=7.1.1.9 {ECO:0000256|RuleBase:RU004024};
GN Name=ctaC {ECO:0000313|EMBL:BAD75367.1};
GN OrderedLocusNames=GK1082 {ECO:0000313|EMBL:BAD75367.1};
OS Geobacillus kaustophilus (strain HTA426).
OC Bacteria; Bacillota; Bacilli; Bacillales; Bacillaceae; Geobacillus;
OC Geobacillus thermoleovorans group.
OX NCBI_TaxID=235909 {ECO:0000313|EMBL:BAD75367.1, ECO:0000313|Proteomes:UP000001172};
RN [1] {ECO:0000313|EMBL:BAD75367.1, ECO:0000313|Proteomes:UP000001172}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=HTA426 {ECO:0000313|EMBL:BAD75367.1,
RC ECO:0000313|Proteomes:UP000001172};
RX PubMed=15576355; DOI=10.1093/nar/gkh970;
RA Takami H., Takaki Y., Chee G.J., Nishi S., Shimamura S., Suzuki H.,
RA Matsui S., Uchiyama I.;
RT "Thermoadaptation trait revealed by the genome sequence of thermophilic
RT Geobacillus kaustophilus.";
RL Nucleic Acids Res. 32:6292-6303(2004).
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).
CC {ECO:0000256|ARBA:ARBA00024688, ECO:0000256|RuleBase:RU004024}.
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|RuleBase:RU004024};
CC -!- COFACTOR:
CC Name=Cu cation; Xref=ChEBI:CHEBI:23378;
CC Evidence={ECO:0000256|RuleBase:RU004024};
CC Note=Binds a copper A center. {ECO:0000256|RuleBase:RU004024};
CC -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000256|RuleBase:RU000456};
CC Multi-pass membrane protein {ECO:0000256|RuleBase:RU000456}. Membrane
CC {ECO:0000256|ARBA:ARBA00004141}; Multi-pass membrane protein
CC {ECO:0000256|ARBA:ARBA00004141}.
CC -!- SIMILARITY: Belongs to the cytochrome c oxidase subunit 2 family.
CC {ECO:0000256|ARBA:ARBA00007866, ECO:0000256|RuleBase:RU000456}.
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DR EMBL; BA000043; BAD75367.1; -; Genomic_DNA.
DR RefSeq; WP_011230582.1; NC_006510.1.
DR AlphaFoldDB; Q5L113; -.
DR STRING; 235909.GK1082; -.
DR KEGG; gka:GK1082; -.
DR PATRIC; fig|235909.7.peg.1180; -.
DR eggNOG; COG1622; Bacteria.
DR eggNOG; COG2010; Bacteria.
DR HOGENOM; CLU_036876_1_1_9; -.
DR Proteomes; UP000001172; Chromosome.
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 GO; GO:0020037; F:heme binding; IEA:InterPro.
DR Gene3D; 1.10.287.90; -; 1.
DR Gene3D; 2.60.40.420; Cupredoxins - blue copper proteins; 1.
DR InterPro; IPR045187; CcO_II.
DR InterPro; IPR002429; CcO_II-like_C.
DR InterPro; IPR001505; Copper_CuA.
DR InterPro; IPR008972; Cupredoxin.
DR InterPro; IPR009056; Cyt_c-like_dom.
DR InterPro; IPR036909; Cyt_c-like_dom_sf.
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 NCBIfam; TIGR02866; CoxB; 1.
DR PANTHER; PTHR22888:SF10; CYTOCHROME C OXIDASE SUBUNIT 2; 1.
DR PANTHER; PTHR22888; CYTOCHROME C OXIDASE, SUBUNIT II; 1.
DR Pfam; PF00116; COX2; 1.
DR Pfam; PF02790; COX2_TM; 1.
DR Pfam; PF00034; Cytochrom_C; 1.
DR PRINTS; PR01166; CYCOXIDASEII.
DR SUPFAM; SSF49503; Cupredoxins; 1.
DR SUPFAM; SSF46626; Cytochrome c; 1.
DR SUPFAM; SSF81464; Cytochrome c oxidase subunit II-like, transmembrane region; 1.
DR PROSITE; PS00078; COX2; 1.
DR PROSITE; PS50857; COX2_CUA; 1.
DR PROSITE; PS50999; COX2_TM; 1.
DR PROSITE; PS51007; CYTC; 1.
DR PROSITE; PS51257; PROKAR_LIPOPROTEIN; 1.
PE 3: Inferred from homology;
KW Copper {ECO:0000256|ARBA:ARBA00023008, ECO:0000256|RuleBase:RU004024};
KW Electron transport {ECO:0000256|ARBA:ARBA00022982,
KW ECO:0000256|RuleBase:RU000456};
KW Heme {ECO:0000256|ARBA:ARBA00022617, ECO:0000256|PROSITE-ProRule:PRU00433};
KW Iron {ECO:0000256|ARBA:ARBA00023004, ECO:0000256|PROSITE-ProRule:PRU00433};
KW Membrane {ECO:0000256|ARBA:ARBA00023136, ECO:0000256|SAM:Phobius};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|PROSITE-
KW ProRule:PRU00433}; Reference proteome {ECO:0000313|Proteomes:UP000001172};
KW Respiratory chain {ECO:0000256|ARBA:ARBA00022660,
KW ECO:0000256|RuleBase:RU000456};
KW Translocase {ECO:0000256|ARBA:ARBA00022967};
KW Transmembrane {ECO:0000256|ARBA:ARBA00022692,
KW ECO:0000256|RuleBase:RU000456};
KW Transmembrane helix {ECO:0000256|ARBA:ARBA00022989,
KW ECO:0000256|SAM:Phobius};
KW Transport {ECO:0000256|ARBA:ARBA00022448, ECO:0000256|RuleBase:RU000456}.
FT TRANSMEM 41..69
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 90..111
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT DOMAIN 23..121
FT /note="Cytochrome oxidase subunit II transmembrane region
FT profile"
FT /evidence="ECO:0000259|PROSITE:PS50999"
FT DOMAIN 130..248
FT /note="Cytochrome oxidase subunit II copper A binding"
FT /evidence="ECO:0000259|PROSITE:PS50857"
FT DOMAIN 260..354
FT /note="Cytochrome c"
FT /evidence="ECO:0000259|PROSITE:PS51007"
SQ SEQUENCE 356 AA; 40096 MW; 38D4979397A35AE3 CRC64;
MNKGLCNWRL FSLFGMMALL LAGCGKPFLS TLQPAGEVAD MQYSLMLLST SIMVLVIVVV
AIIFVYVVIR FRRRKGEENK IPKQVEGSHK LEIIWTVIPI ILLLILAVPT VSATFKLADV
KAMNDKKRDK DTVVVNVRAN QYWWEFEYPD YGIITSQDLV VPTNEKVYFN LIASDVKHSF
WIPAVGGKMD TNTDNKNQFW LVFDQKATDK AGGVFYGKCA ELCGPSHALM DFKVRPLPRT
EFDAWVEKMQ NAKKPVVTDP VAKQGEAIFN KSCIGCHAVT PVDKRPVQAR TAPNLANFGD
RERIAGILEH NEENLKKWLR DPNSVKPGNK MAGTYGHLTE EQIDALTKYL MSLKVE
//
