ID G0NTU9_CAEBE Unreviewed; 451 AA.
AC G0NTU9;
DT 19-OCT-2011, integrated into UniProtKB/TrEMBL.
DT 19-OCT-2011, sequence version 1.
DT 27-MAR-2024, entry version 41.
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=coq-6 {ECO:0000256|HAMAP-Rule:MF_03193};
GN ORFNames=CAEBREN_32409 {ECO:0000313|EMBL:EGT37605.1};
OS Caenorhabditis brenneri (Nematode worm).
OC Eukaryota; Metazoa; Ecdysozoa; Nematoda; Chromadorea; Rhabditida;
OC Rhabditina; Rhabditomorpha; Rhabditoidea; Rhabditidae; Peloderinae;
OC Caenorhabditis.
OX NCBI_TaxID=135651 {ECO:0000313|Proteomes:UP000008068};
RN [1] {ECO:0000313|Proteomes:UP000008068}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=PB2801 {ECO:0000313|Proteomes:UP000008068};
RG Caenorhabditis brenneri Sequencing and Analysis Consortium;
RA Wilson R.K.;
RL Submitted (JUL-2011) to the EMBL/GenBank/DDBJ databases.
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.
CC {ECO:0000256|HAMAP-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}.
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DR EMBL; GL379946; EGT37605.1; -; Genomic_DNA.
DR AlphaFoldDB; G0NTU9; -.
DR STRING; 135651.G0NTU9; -.
DR EnsemblMetazoa; CBN32409.1; CBN32409.1; WBGene00194374.
DR eggNOG; KOG3855; Eukaryota.
DR HOGENOM; CLU_009665_8_0_1; -.
DR InParanoid; G0NTU9; -.
DR UniPathway; UPA00232; -.
DR Proteomes; UP000008068; Unassembled WGS sequence.
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; TIGR01989; COQ6; 1.
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; 2.
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|HAMAP-Rule:MF_03193};
KW Flavoprotein {ECO:0000256|HAMAP-Rule:MF_03193};
KW 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}; Reference proteome {ECO:0000313|Proteomes:UP000008068};
KW Ubiquinone biosynthesis {ECO:0000256|ARBA:ARBA00022688, ECO:0000256|HAMAP-
KW Rule:MF_03193}.
FT DOMAIN 18..273
FT /note="FAD-binding"
FT /evidence="ECO:0000259|Pfam:PF01494"
FT DOMAIN 314..392
FT /note="FAD-binding"
FT /evidence="ECO:0000259|Pfam:PF01494"
SQ SEQUENCE 451 AA; 49236 MW; 8629C1EDE38A0E86 CRC64;
MKLAGGTVSC ARNASSYYDA VIVGGGMVGN AMACSLGANK SFTSKNVLLL DAGRSPSLSS
FESGAPFNNR VVAISPTSID TFKKLGVWER ISSHRAKKVK RLFVFDSCST SEIEFERGQQ
EEVAYIIEND LIVGSLYEKL SEYKNIDVKT EAKVAECSIP NGLENMATIK LENGNVIETS
LLIGADGVNS KVRQSSNLDY STFNYNQHGL VAIVNIETSN GKNETAWQRF TTLGPVALLP
LSDTVSGLTW STSPEEAQRL KQLPPDQFVD ELNHALFSQD DQLPYVNQAI FALNRMNPFR
SETFGRKAEG TTPPHVITVQ DKSRASFPLG FGNAHSYITT RCALIGDSAH RMHPLAGQGV
NLGWSDVQIL DKVLGDAVRE GADIGSVTYL REYDSAAQKH NLPVMVSVDL LNRLYRTDAP
AVVAVRSLGL NTFNSLGPVK RFLMNYLSAH R
//
