ID H3AVV5_LATCH Unreviewed; 285 AA.
AC H3AVV5;
DT 18-APR-2012, integrated into UniProtKB/TrEMBL.
DT 18-APR-2012, sequence version 1.
DT 27-MAR-2024, entry version 60.
DE RecName: Full=Ubiquinone biosynthesis O-methyltransferase, mitochondrial {ECO:0000256|HAMAP-Rule:MF_03190};
DE AltName: Full=3-demethylubiquinol 3-O-methyltransferase {ECO:0000256|HAMAP-Rule:MF_03190};
DE EC=2.1.1.64 {ECO:0000256|HAMAP-Rule:MF_03190};
DE AltName: Full=Polyprenyldihydroxybenzoate methyltransferase {ECO:0000256|HAMAP-Rule:MF_03190};
DE EC=2.1.1.114 {ECO:0000256|HAMAP-Rule:MF_03190};
GN Name=COQ3 {ECO:0000256|HAMAP-Rule:MF_03190,
GN ECO:0000313|Ensembl:ENSLACP00000013776.1};
OS Latimeria chalumnae (Coelacanth).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC Coelacanthiformes; Coelacanthidae; Latimeria.
OX NCBI_TaxID=7897 {ECO:0000313|Ensembl:ENSLACP00000013776.1, ECO:0000313|Proteomes:UP000008672};
RN [1] {ECO:0000313|Proteomes:UP000008672}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Wild caught {ECO:0000313|Proteomes:UP000008672};
RA Di Palma F., Alfoldi J., Johnson J., Berlin A., Gnerre S., Jaffe D.,
RA MacCallum I., Young S., Walker B.J., Lander E., Lindblad-Toh K.;
RT "The draft genome of Latimeria chalumnae.";
RL Submitted (AUG-2011) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|Ensembl:ENSLACP00000013776.1}
RP IDENTIFICATION.
RG Ensembl;
RL Submitted (NOV-2023) to UniProtKB.
CC -!- FUNCTION: O-methyltransferase that catalyzes the 2 O-methylation steps
CC in the ubiquinone biosynthetic pathway. {ECO:0000256|HAMAP-
CC Rule:MF_03190}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=3,4-dihydroxy-5-all-trans-polyprenylbenzoate + S-adenosyl-L-
CC methionine = 3-methoxy,4-hydroxy-5-all-trans-polyprenylbenzoate +
CC H(+) + S-adenosyl-L-homocysteine; Xref=Rhea:RHEA:44452, Rhea:RHEA-
CC COMP:10930, Rhea:RHEA-COMP:10931, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:57856, ChEBI:CHEBI:59789, ChEBI:CHEBI:64694,
CC ChEBI:CHEBI:84443; EC=2.1.1.114; Evidence={ECO:0000256|HAMAP-
CC Rule:MF_03190};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a 3-demethylubiquinol + S-adenosyl-L-methionine = a ubiquinol
CC + H(+) + S-adenosyl-L-homocysteine; Xref=Rhea:RHEA:44380, Rhea:RHEA-
CC COMP:9566, Rhea:RHEA-COMP:10914, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:17976, ChEBI:CHEBI:57856, ChEBI:CHEBI:59789,
CC ChEBI:CHEBI:84422; EC=2.1.1.64; Evidence={ECO:0000256|HAMAP-
CC Rule:MF_03190};
CC -!- PATHWAY: Cofactor biosynthesis; ubiquinone biosynthesis.
CC {ECO:0000256|HAMAP-Rule:MF_03190}.
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_03190}.
CC -!- SUBCELLULAR LOCATION: Mitochondrion inner membrane {ECO:0000256|HAMAP-
CC Rule:MF_03190}; Peripheral membrane protein {ECO:0000256|HAMAP-
CC Rule:MF_03190}; Matrix side {ECO:0000256|HAMAP-Rule:MF_03190}.
CC -!- SIMILARITY: Belongs to the class I-like SAM-binding methyltransferase
CC superfamily. UbiG/COQ3 family. {ECO:0000256|HAMAP-Rule:MF_03190}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_03190}.
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DR EMBL; AFYH01109241; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR EMBL; AFYH01109242; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR AlphaFoldDB; H3AVV5; -.
DR STRING; 7897.ENSLACP00000013776; -.
DR Ensembl; ENSLACT00000013873.1; ENSLACP00000013776.1; ENSLACG00000012129.1.
DR eggNOG; KOG1270; Eukaryota.
DR GeneTree; ENSGT00390000007284; -.
DR HOGENOM; CLU_042432_0_0_1; -.
DR InParanoid; H3AVV5; -.
DR OMA; LASRWWD; -.
DR TreeFam; TF314553; -.
DR UniPathway; UPA00232; -.
DR Proteomes; UP000008672; Unassembled WGS sequence.
DR Bgee; ENSLACG00000012129; Expressed in post-anal tail muscle and 6 other cell types or tissues.
DR GO; GO:0031314; C:extrinsic component of mitochondrial inner membrane; IEA:UniProtKB-UniRule.
DR GO; GO:0008425; F:2-polyprenyl-6-methoxy-1,4-benzoquinone methyltransferase activity; IEA:InterPro.
DR GO; GO:0061542; F:3-demethylubiquinol-n 3-O-methyltransferase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0004395; F:hexaprenyldihydroxybenzoate methyltransferase activity; IEA:UniProtKB-EC.
DR GO; GO:0032259; P:methylation; IEA:UniProtKB-KW.
DR GO; GO:0006744; P:ubiquinone biosynthetic process; IEA:UniProtKB-UniRule.
DR CDD; cd02440; AdoMet_MTases; 1.
DR Gene3D; 3.40.50.150; Vaccinia Virus protein VP39; 1.
DR HAMAP; MF_00472; UbiG; 1.
DR InterPro; IPR013216; Methyltransf_11.
DR InterPro; IPR029063; SAM-dependent_MTases_sf.
DR InterPro; IPR010233; UbiG_MeTrfase.
DR NCBIfam; TIGR01983; UbiG; 1.
DR PANTHER; PTHR43464; METHYLTRANSFERASE; 1.
DR PANTHER; PTHR43464:SF19; UBIQUINONE BIOSYNTHESIS O-METHYLTRANSFERASE, MITOCHONDRIAL; 1.
DR Pfam; PF08241; Methyltransf_11; 1.
DR SUPFAM; SSF53335; S-adenosyl-L-methionine-dependent methyltransferases; 1.
PE 3: Inferred from homology;
KW Membrane {ECO:0000256|HAMAP-Rule:MF_03190};
KW Methyltransferase {ECO:0000256|ARBA:ARBA00022603, ECO:0000256|HAMAP-
KW Rule:MF_03190}; Mitochondrion {ECO:0000256|HAMAP-Rule:MF_03190};
KW Mitochondrion inner membrane {ECO:0000256|HAMAP-Rule:MF_03190};
KW Reference proteome {ECO:0000313|Proteomes:UP000008672};
KW S-adenosyl-L-methionine {ECO:0000256|ARBA:ARBA00022691, ECO:0000256|HAMAP-
KW Rule:MF_03190};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_03190};
KW Ubiquinone biosynthesis {ECO:0000256|ARBA:ARBA00022688, ECO:0000256|HAMAP-
KW Rule:MF_03190}.
FT DOMAIN 81..175
FT /note="Methyltransferase type 11"
FT /evidence="ECO:0000259|Pfam:PF08241"
FT REGION 257..285
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT BINDING 46
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03190"
FT BINDING 100
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03190"
FT BINDING 147
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03190"
SQ SEQUENCE 285 AA; 31690 MW; C0065C9C77C6E509 CRC64;
LVTWRKHSSS QTTVDPGEMK KFQAWAERWW DDHGEFAALH SMNNLRIPFI SNSVLSLLTS
AFQHHRKLPL GGKAVRNLKI GSPLYTQPLG RLGALVTGID PLENNIRTAE LHKSFDPVLN
ERIQYVACSL EEMAEKAAET FDAVVASEVV EHVMDVESFV ICCNQVLKPG GSLFITTINK
TELSYALAII AAERILKIVP RGTHDWEKFV VPEELERLLE SNGFFVETIT GMLYNPVSDS
WHWIGSTNLN YSVHAVKTRS QEQPEAPEPA ASKEGPAGPG AETQT
//
