ID QOX4_STAEQ Reviewed; 96 AA.
AC Q5HQB2;
DT 06-FEB-2007, integrated into UniProtKB/Swiss-Prot.
DT 15-FEB-2005, sequence version 1.
DT 27-MAR-2024, entry version 87.
DE RecName: Full=Probable quinol oxidase subunit 4;
DE EC=1.10.3.-;
DE AltName: Full=Quinol oxidase polypeptide IV;
GN Name=qoxD; OrderedLocusNames=SERP0643;
OS Staphylococcus epidermidis (strain ATCC 35984 / RP62A).
OC Bacteria; Bacillota; Bacilli; Bacillales; Staphylococcaceae;
OC Staphylococcus.
OX NCBI_TaxID=176279;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 35984 / RP62A;
RX PubMed=15774886; DOI=10.1128/jb.187.7.2426-2438.2005;
RA Gill S.R., Fouts D.E., Archer G.L., Mongodin E.F., DeBoy R.T., Ravel J.,
RA Paulsen I.T., Kolonay J.F., Brinkac L.M., Beanan M.J., Dodson R.J.,
RA Daugherty S.C., Madupu R., Angiuoli S.V., Durkin A.S., Haft D.H.,
RA Vamathevan J.J., Khouri H., Utterback T.R., Lee C., Dimitrov G., Jiang L.,
RA Qin H., Weidman J., Tran K., Kang K.H., Hance I.R., Nelson K.E.,
RA Fraser C.M.;
RT "Insights on evolution of virulence and resistance from the complete genome
RT analysis of an early methicillin-resistant Staphylococcus aureus strain and
RT a biofilm-producing methicillin-resistant Staphylococcus epidermidis
RT strain.";
RL J. Bacteriol. 187:2426-2438(2005).
CC -!- FUNCTION: Catalyzes quinol oxidation with the concomitant reduction of
CC oxygen to water. {ECO:0000250}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=2 a quinol + O2 = 2 a quinone + 2 H2O; Xref=Rhea:RHEA:55376,
CC ChEBI:CHEBI:15377, ChEBI:CHEBI:15379, ChEBI:CHEBI:24646,
CC ChEBI:CHEBI:132124;
CC -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000250}; Multi-pass membrane
CC protein {ECO:0000250}.
CC -!- SIMILARITY: Belongs to the cytochrome c oxidase bacterial subunit 4
CC family. {ECO:0000305}.
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DR EMBL; CP000029; AAW53981.1; -; Genomic_DNA.
DR RefSeq; WP_001831700.1; NC_002976.3.
DR AlphaFoldDB; Q5HQB2; -.
DR SMR; Q5HQB2; -.
DR STRING; 176279.SERP0643; -.
DR GeneID; 50019104; -.
DR KEGG; ser:SERP0643; -.
DR eggNOG; COG3125; Bacteria.
DR HOGENOM; CLU_140945_2_0_9; -.
DR Proteomes; UP000000531; Chromosome.
DR GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0016682; F:oxidoreductase activity, acting on diphenols and related substances as donors, oxygen as acceptor; IEA:InterPro.
DR GO; GO:0042773; P:ATP synthesis coupled electron transport; IEA:InterPro.
DR InterPro; IPR005171; Cyt_c_oxidase_su4_prok.
DR InterPro; IPR014250; QoxD.
DR NCBIfam; TIGR02901; QoxD; 1.
DR PANTHER; PTHR36835; CYTOCHROME BO(3) UBIQUINOL OXIDASE SUBUNIT 4; 1.
DR PANTHER; PTHR36835:SF1; CYTOCHROME BO(3) UBIQUINOL OXIDASE SUBUNIT 4; 1.
DR Pfam; PF03626; COX4_pro; 1.
PE 3: Inferred from homology;
KW Cell membrane; Membrane; Oxidoreductase; Reference proteome; Transmembrane;
KW Transmembrane helix.
FT CHAIN 1..96
FT /note="Probable quinol oxidase subunit 4"
FT /id="PRO_0000275867"
FT TRANSMEM 8..28
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 36..56
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 68..88
FT /note="Helical"
FT /evidence="ECO:0000255"
SQ SEQUENCE 96 AA; 10689 MW; 07D5F7FA957833E1 CRC64;
MNTIVKHTVG FIASIVLTLL AVFVTLYTNM TFHAKVTIIF GFAFIQAALQ LLMFMHLTEG
KDGRLQSFKV IFAIIITLVT VIGTYWVMQG GHSSHL
//
