ID A0A0A1SQE8_9HYPO Unreviewed; 486 AA.
AC A0A0A1SQE8;
DT 04-FEB-2015, integrated into UniProtKB/TrEMBL.
DT 04-FEB-2015, sequence version 1.
DT 27-MAR-2024, entry version 35.
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=VHEMI02679 {ECO:0000313|EMBL:CEJ82628.1};
OS [Torrubiella] hemipterigena.
OC Eukaryota; Fungi; Dikarya; Ascomycota; Pezizomycotina; Sordariomycetes;
OC Hypocreomycetidae; Hypocreales; Clavicipitaceae;
OC Clavicipitaceae incertae sedis; 'Torrubiella' clade.
OX NCBI_TaxID=1531966 {ECO:0000313|EMBL:CEJ82628.1, ECO:0000313|Proteomes:UP000039046};
RN [1] {ECO:0000313|EMBL:CEJ82628.1, ECO:0000313|Proteomes:UP000039046}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RA Horn F., Habel A., Scharf D.H., Dworschak J., Brakhage A.A., Guthke R.,
RA Hertweck C., Linde J.;
RT "Draft Genome Sequence and Gene Annotation of the Entomopathogenic Fungus
RT Verticillium hemipterigenum.";
RL Genome Announc. 3:e01439-e01414(2015).
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}.
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DR EMBL; CDHN01000001; CEJ82628.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A0A1SQE8; -.
DR STRING; 1531966.A0A0A1SQE8; -.
DR HOGENOM; CLU_009665_8_0_1; -.
DR OrthoDB; 5473786at2759; -.
DR UniPathway; UPA00232; -.
DR Proteomes; UP000039046; 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; 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}; Reference proteome {ECO:0000313|Proteomes:UP000039046};
KW Ubiquinone {ECO:0000313|EMBL:CEJ82628.1};
KW Ubiquinone biosynthesis {ECO:0000256|ARBA:ARBA00022688, ECO:0000256|HAMAP-
KW Rule:MF_03193}.
FT DOMAIN 36..430
FT /note="FAD-binding"
FT /evidence="ECO:0000259|Pfam:PF01494"
SQ SEQUENCE 486 AA; 52567 MW; CEC04EBC730B190C CRC64;
MPASRLISSS SRFVCRGCTK RKAHRFYSSA ASPEIYDVVC VGGGPAGLSL LTALRANPAT
SRLRVALVEA QDLAKTASFS LPSTQFSNRC SSLTPSSAHF LNDIGAWTHL KRDRVQEYHE
MFAWDGLTDA RIEFEWPDKN TTQSPVIAYM TENLNLTSGL LKRIHELGGI DIFDNSKVEN
IGLGEETEDL DLSSWPVLHL SGGQSLAARL LVGADGANSP VRAFAGIESR GWDYGRHGVV
ATLELEGEGW GGLNSKAAYQ RFLPTGPIAM LPMPGKYATL VWSTTPENAA ILKKLAPKDF
IALVNAGFRL GAVDVAFMHT QPTGQEDELS WRLQHTAVDE HSVPQTVVGV QEGSVASFPL
KMRHADTYIG ERVALVGDAA HTIHPLAGQG LNQGQGDVQS LVKTIEYAVT HGQDLGKQTS
LESYNSERYA ANHVLLGVCD KLHKIYAVES GPLVPLRSLG LKAVNSLGPL KNFFMEQASG
TGLKMF
//
