ID B9W7D5_CANDC Unreviewed; 480 AA.
AC B9W7D5;
DT 24-MAR-2009, integrated into UniProtKB/TrEMBL.
DT 24-MAR-2009, sequence version 1.
DT 27-MAR-2024, entry version 68.
DE RecName: Full=Ubiquinone biosynthesis monooxygenase COQ6, mitochondrial {ECO:0000256|HAMAP-Rule:MF_03193};
DE EC=1.14.13.- {ECO:0000256|HAMAP-Rule:MF_03193};
GN Name=COQ6 {ECO:0000256|HAMAP-Rule:MF_03193};
GN OrderedLocusNames=Cd36_03340 {ECO:0000313|CGD:CAL0000170603};
GN ORFNames=CD36_03340 {ECO:0000313|EMBL:CAX44594.1};
OS Candida dubliniensis (strain CD36 / ATCC MYA-646 / CBS 7987 / NCPF 3949 /
OS NRRL Y-17841) (Yeast).
OC Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes;
OC Saccharomycetales; Debaryomycetaceae; Candida/Lodderomyces clade; Candida.
OX NCBI_TaxID=573826 {ECO:0000313|EMBL:CAX44594.1, ECO:0000313|Proteomes:UP000002605};
RN [1] {ECO:0000313|EMBL:CAX44594.1, ECO:0000313|Proteomes:UP000002605}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CD36 / ATCC MYA-646 / CBS 7987 / NCPF 3949 / NRRL Y-17841
RC {ECO:0000313|Proteomes:UP000002605};
RX PubMed=19745113; DOI=10.1101/gr.097501.109;
RA Jackson A.P., Gamble J.A., Yeomans T., Moran G.P., Saunders D., Harris D.,
RA Aslett M., Barrell J.F., Butler G., Citiulo F., Coleman D.C.,
RA de Groot P.W.J., Goodwin T.J., Quail M.A., McQuillan J., Munro C.A.,
RA Pain A., Poulter R.T., Rajandream M.A., Renauld H., Spiering M.J.,
RA Tivey A., Gow N.A.R., Barrell B., Sullivan D.J., Berriman M.;
RT "Comparative genomics of the fungal pathogens Candida dubliniensis and
RT Candida albicans.";
RL Genome Res. 19:2231-2244(2009).
CC -!- FUNCTION: FAD-dependent monooxygenase required for the C5-ring
CC hydroxylation during ubiquinone biosynthesis. Catalyzes the
CC hydroxylation of 3-polyprenyl-4-hydroxybenzoic acid to 3-
CC polyprenyl-4,5-dihydroxybenzoic acid. The electrons required for the
CC hydroxylation reaction may be funneled indirectly from NADPH via a
CC ferredoxin/ferredoxin reductase system to COQ6. {ECO:0000256|HAMAP-
CC Rule:MF_03193}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=4-hydroxy-3-all-trans-hexaprenylbenzoate + 2 H(+) + O2 + 2
CC reduced [2Fe-2S]-[ferredoxin] = 3,4-dihydroxy-5-all-trans-
CC hexaprenylbenzoate + H2O + 2 oxidized [2Fe-2S]-[ferredoxin];
CC Xref=Rhea:RHEA:20361, Rhea:RHEA-COMP:10000, Rhea:RHEA-COMP:10001,
CC ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:15379,
CC ChEBI:CHEBI:33737, ChEBI:CHEBI:33738, ChEBI:CHEBI:58373,
CC ChEBI:CHEBI:84492; Evidence={ECO:0000256|HAMAP-Rule:MF_03193};
CC -!- COFACTOR:
CC Name=FAD; Xref=ChEBI:CHEBI:57692;
CC Evidence={ECO:0000256|ARBA:ARBA00001974,
CC ECO:0000256|HAMAP-Rule:MF_03193};
CC -!- PATHWAY: Cofactor biosynthesis; ubiquinone biosynthesis.
CC {ECO:0000256|HAMAP-Rule:MF_03193}.
CC -!- SUBUNIT: Component of a multi-subunit COQ enzyme complex, composed of
CC at least COQ3, COQ4, COQ5, COQ6, COQ7 and COQ9. {ECO:0000256|HAMAP-
CC Rule:MF_03193}.
CC -!- SUBCELLULAR LOCATION: Mitochondrion inner membrane {ECO:0000256|HAMAP-
CC Rule:MF_03193}; Peripheral membrane protein {ECO:0000256|HAMAP-
CC Rule:MF_03193}; Matrix side {ECO:0000256|HAMAP-Rule:MF_03193}.
CC -!- SIMILARITY: Belongs to the UbiH/COQ6 family.
CC {ECO:0000256|ARBA:ARBA00005349, ECO:0000256|HAMAP-Rule:MF_03193}.
CC ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; FM992688; CAX44594.1; -; Genomic_DNA.
DR RefSeq; XP_002417006.1; XM_002416961.1.
DR AlphaFoldDB; B9W7D5; -.
DR GeneID; 8044542; -.
DR KEGG; cdu:CD36_03340; -.
DR CGD; CAL0000170603; Cd36_03340.
DR VEuPathDB; FungiDB:CD36_03340; -.
DR eggNOG; KOG3855; Eukaryota.
DR HOGENOM; CLU_009665_8_0_1; -.
DR OrthoDB; 5473786at2759; -.
DR UniPathway; UPA00232; -.
DR Proteomes; UP000002605; Chromosome 1.
DR GO; GO:0031314; C:extrinsic component of mitochondrial inner membrane; IEA:UniProtKB-UniRule.
DR GO; GO:0008681; F:2-octaprenyl-6-methoxyphenol hydroxylase activity; IEA:InterPro.
DR GO; GO:0106364; F:4-hydroxy-3-all-trans-hexaprenylbenzoate oxygenase activity; IEA:RHEA.
DR GO; GO:0071949; F:FAD binding; IEA:InterPro.
DR GO; GO:0016709; F:oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen, NAD(P)H as one donor, and incorporation of one atom of oxygen; IEA:InterPro.
DR GO; GO:0006744; P:ubiquinone biosynthetic process; IEA:UniProtKB-UniRule.
DR Gene3D; 3.50.50.60; FAD/NAD(P)-binding domain; 2.
DR HAMAP; MF_03193; COQ6_monooxygenase; 1.
DR InterPro; IPR002938; FAD-bd.
DR InterPro; IPR036188; FAD/NAD-bd_sf.
DR InterPro; IPR018168; Ubi_Hdrlase_CS.
DR InterPro; IPR010971; UbiH/COQ6.
DR InterPro; IPR000689; UbQ_mOase_COQ6.
DR NCBIfam; TIGR01988; Ubi-OHases; 1.
DR PANTHER; PTHR43876; UBIQUINONE BIOSYNTHESIS MONOOXYGENASE COQ6, MITOCHONDRIAL; 1.
DR PANTHER; PTHR43876:SF7; UBIQUINONE BIOSYNTHESIS MONOOXYGENASE COQ6, MITOCHONDRIAL; 1.
DR Pfam; PF01494; FAD_binding_3; 1.
DR PRINTS; PR00420; RNGMNOXGNASE.
DR SUPFAM; SSF51905; FAD/NAD(P)-binding domain; 1.
DR PROSITE; PS01304; UBIH; 1.
PE 3: Inferred from homology;
KW FAD {ECO:0000256|ARBA:ARBA00022827, ECO:0000256|HAMAP-Rule:MF_03193};
KW Flavoprotein {ECO:0000256|ARBA:ARBA00022630, ECO:0000256|HAMAP-
KW Rule:MF_03193}; Membrane {ECO:0000256|HAMAP-Rule:MF_03193};
KW Mitochondrion {ECO:0000256|HAMAP-Rule:MF_03193};
KW Mitochondrion inner membrane {ECO:0000256|ARBA:ARBA00022792,
KW ECO:0000256|HAMAP-Rule:MF_03193};
KW Monooxygenase {ECO:0000256|ARBA:ARBA00023033, ECO:0000256|HAMAP-
KW Rule:MF_03193};
KW Oxidoreductase {ECO:0000256|ARBA:ARBA00023002, ECO:0000256|HAMAP-
KW Rule:MF_03193}; Ubiquinone {ECO:0000313|EMBL:CAX44594.1};
KW Ubiquinone biosynthesis {ECO:0000256|ARBA:ARBA00022688, ECO:0000256|HAMAP-
KW Rule:MF_03193}.
FT DOMAIN 346..405
FT /note="FAD-binding"
FT /evidence="ECO:0000259|Pfam:PF01494"
SQ SEQUENCE 480 AA; 53318 MW; A2D6D0DFB1D400C8 CRC64;
MISRFVRTLA TSTKFQDVVI IGGGPAGLTL LAALKTSPKT KHLKCTLIEG SSLDNVRKFH
KDPPADYTNR VISLTPKSID FMQNKVGSWD FIHEDRVKAY DGIIAYDSQD ANSRIEFDIS
TIGQSMLAAM CEVINIQSSL LAKIESLEDK STTIKDNSKV VEIVNPIEPD LDNHNLTEID
TSVSEPKLDW PIVKLENGES IQTRLLVGAD GYNSPVRKYA HIESRGWQYN TFGVVATVKL
QYEDFRAVGW QRFLTTGPLA ILPLSEDNAT IVWSSTPELA DLLLKVNEKI FPQLVTAAMV
LEEVDLNYIY SVLQEDPNDF SVLKDIEWRL SKFNPEELEE RYPLPVVEVL SGSRAKFPLK
MSHADTYVAP RVALVGDAAH TIHPLAGQGL NMGQSDVAAL VEVLEKGIDR GMDIGSTLVL
ENYVANAWPS NHALLGICDK LHKVFSTDFY PLVWARGFGM KSINSLGTIK EFMMKSISGR
//
