ID D7L474_ARALL Unreviewed; 505 AA.
AC D7L474;
DT 10-AUG-2010, integrated into UniProtKB/TrEMBL.
DT 10-AUG-2010, sequence version 1.
DT 27-MAR-2024, entry version 62.
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 ORFNames=ARALYDRAFT_898948 {ECO:0000313|EMBL:EFH59736.1};
OS Arabidopsis lyrata subsp. lyrata (Lyre-leaved rock-cress).
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC rosids; malvids; Brassicales; Brassicaceae; Camelineae; Arabidopsis.
OX NCBI_TaxID=81972 {ECO:0000313|Proteomes:UP000008694};
RN [1] {ECO:0000313|Proteomes:UP000008694}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=cv. MN47 {ECO:0000313|Proteomes:UP000008694};
RX PubMed=21478890; DOI=10.1038/ng.807;
RA Hu T.T., Pattyn P., Bakker E.G., Cao J., Cheng J.-F., Clark R.M.,
RA Fahlgren N., Fawcett J.A., Grimwood J., Gundlach H., Haberer G.,
RA Hollister J.D., Ossowski S., Ottilar R.P., Salamov A.A., Schneeberger K.,
RA Spannagl M., Wang X., Yang L., Nasrallah M.E., Bergelson J.,
RA Carrington J.C., Gaut B.S., Schmutz J., Mayer K.F.X., Van de Peer Y.,
RA Grigoriev I.V., Nordborg M., Weigel D., Guo Y.-L.;
RT "The Arabidopsis lyrata genome sequence and the basis of rapid genome size
RT change.";
RL Nat. Genet. 43:476-481(2011).
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; GL348715; EFH59736.1; -; Genomic_DNA.
DR RefSeq; XP_002883477.1; XM_002883431.1.
DR AlphaFoldDB; D7L474; -.
DR STRING; 81972.D7L474; -.
DR EnsemblPlants; scaffold_302918.1; scaffold_302918.1; scaffold_302918.1.
DR GeneID; 9319544; -.
DR Gramene; scaffold_302918.1; scaffold_302918.1; scaffold_302918.1.
DR KEGG; aly:9319544; -.
DR eggNOG; KOG3855; Eukaryota.
DR HOGENOM; CLU_009665_8_0_1; -.
DR OrthoDB; 5473786at2759; -.
DR UniPathway; UPA00232; -.
DR Proteomes; UP000008694; 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:UP000008694};
KW Ubiquinone biosynthesis {ECO:0000256|ARBA:ARBA00022688, ECO:0000256|HAMAP-
KW Rule:MF_03193}.
FT DOMAIN 53..328
FT /note="FAD-binding"
FT /evidence="ECO:0000259|Pfam:PF01494"
FT DOMAIN 369..452
FT /note="FAD-binding"
FT /evidence="ECO:0000259|Pfam:PF01494"
FT REGION 29..49
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 29..47
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ SEQUENCE 505 AA; 54948 MW; 3DC0BD47B259EDCC CRC64;
MNRVLARNLS KNVCGTRVLR RTCSTVVTHE VSSSGSNESN AIRNSTDDGP QHDIAIVGGG
MVGIALAASL ASKPLTKHLN VAIIDNNPLL GRKNIIEKGH PPDPRVSTVT PATLSFLKDI
GAWKYIEEQR HAYFDKMQVW DYTGLGYTRY NANDVHQDVL GCVVENKVLQ SSQLSCVQES
DLQKTVYPAR LNAMDMLPSS SLTGLGEVPS STDLFMRGRL AKLELSDGNH VYAKLVVGAD
GSKSRVRELA GIKTTGWNYS QNAIICTVEH TVENYTAWQR FLPNGPIALL PIGDKFSNIV
WTMDPKEASD RKLMNEDDFI KAVNDALDSG YGPNPETTSS PDSLSWLTGD STISAKERFE
TPPKVVKLSS ERMMFPLSLR HAKDYVSKRV ALVGDSAHTV HPLAGQGVNL GFADACALSK
AISEGIALGT DIGESNLLKR YEADRKPANI AMMAVLDGIQ KMYSVNFGPL NALRAAAFHG
AHYISPLKKR IISYASGDQS LPLFS
//
