ID A0A1G5IH93_9PROT Unreviewed; 377 AA.
AC A0A1G5IH93;
DT 22-NOV-2017, integrated into UniProtKB/TrEMBL.
DT 22-NOV-2017, sequence version 1.
DT 24-JAN-2024, entry version 21.
DE RecName: Full=Cytochrome c oxidase subunit 2 {ECO:0000256|RuleBase:RU004024};
DE EC=7.1.1.9 {ECO:0000256|RuleBase:RU004024};
GN ORFNames=SAMN05216420_11668 {ECO:0000313|EMBL:SCY75337.1};
OS Nitrosospira sp. Nl5.
OC Bacteria; Pseudomonadota; Betaproteobacteria; Nitrosomonadales;
OC Nitrosomonadaceae; Nitrosospira.
OX NCBI_TaxID=200120 {ECO:0000313|EMBL:SCY75337.1, ECO:0000313|Proteomes:UP000198645};
RN [1] {ECO:0000313|Proteomes:UP000198645}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Nl5 {ECO:0000313|Proteomes:UP000198645};
RA Varghese N., Submissions S.;
RL Submitted (OCT-2016) to the EMBL/GenBank/DDBJ databases.
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; FMVQ01000016; SCY75337.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A1G5IH93; -.
DR STRING; 200120.SAMN05216420_11668; -.
DR OrthoDB; 9781261at2; -.
DR Proteomes; UP000198645; Unassembled WGS sequence.
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 CDD; cd13912; CcO_II_C; 1.
DR Gene3D; 1.10.287.90; -; 1.
DR Gene3D; 2.60.40.420; Cupredoxins - blue copper proteins; 1.
DR Gene3D; 1.10.760.10; Cytochrome c-like domain; 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; 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:SF9; 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; PF13442; Cytochrome_CBB3; 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.
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:UP000198645};
KW Respiratory chain {ECO:0000256|ARBA:ARBA00022660,
KW ECO:0000256|RuleBase:RU000456}; Signal {ECO:0000256|SAM:SignalP};
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 SIGNAL 1..24
FT /evidence="ECO:0000256|SAM:SignalP"
FT CHAIN 25..377
FT /note="Cytochrome c oxidase subunit 2"
FT /evidence="ECO:0000256|SAM:SignalP"
FT /id="PRO_5011448905"
FT TRANSMEM 48..70
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 91..109
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT DOMAIN 24..119
FT /note="Cytochrome oxidase subunit II transmembrane region
FT profile"
FT /evidence="ECO:0000259|PROSITE:PS50999"
FT DOMAIN 120..260
FT /note="Cytochrome oxidase subunit II copper A binding"
FT /evidence="ECO:0000259|PROSITE:PS50857"
FT DOMAIN 280..359
FT /note="Cytochrome c"
FT /evidence="ECO:0000259|PROSITE:PS51007"
SQ SEQUENCE 377 AA; 41536 MW; EC460C9F49968220 CRC64;
MSSKATAALV GVLTLALYSG LSMAADPYQL NLQEPQTIIA RQTYDQHTMV LWVCLVIFIG
VFGTMFYSVL KHRKDKGYKA ANFHHSTTVE IIWTTIPFFI LIGMAYPATK TVIAMKDTSS
PDITIKTTGY QWKWGYDYLT GEGEGISFLS SLSTPRAQLE NREPKGENYL LEVDNPVVVP
INKKIRILLT SNDVIHAWWV PAFGVKQDAI PGFIRDTWFT AEKPGIYRGQ CAELCGKEHG
YMPIVVEAVE PEKYTQWVAE QTKKSAVAAV DVNKVYTMDE LKAEGENVYA ANCVACHQAN
GKGIPGTFAA LDGSKVATGP KADHINIVMN GKTGTAMAAF KHLSDVQIAA VVTYERNAWG
NTTGDVVQPS EIIELRK
//
