UBIG_ACIBS
ID UBIG_ACIBS Reviewed; 237 AA.
AC B0VMN8;
DT 14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT 08-APR-2008, sequence version 1.
DT 03-AUG-2022, entry version 86.
DE RecName: Full=Ubiquinone biosynthesis O-methyltransferase {ECO:0000255|HAMAP-Rule:MF_00472};
DE AltName: Full=2-polyprenyl-6-hydroxyphenol methylase {ECO:0000255|HAMAP-Rule:MF_00472};
DE EC=2.1.1.222 {ECO:0000255|HAMAP-Rule:MF_00472};
DE AltName: Full=3-demethylubiquinone 3-O-methyltransferase {ECO:0000255|HAMAP-Rule:MF_00472};
DE EC=2.1.1.64 {ECO:0000255|HAMAP-Rule:MF_00472};
GN Name=ubiG {ECO:0000255|HAMAP-Rule:MF_00472}; OrderedLocusNames=ABSDF0045;
OS Acinetobacter baumannii (strain SDF).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Moraxellales; Moraxellaceae;
OC Acinetobacter; Acinetobacter calcoaceticus/baumannii complex.
OX NCBI_TaxID=509170;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=SDF;
RX PubMed=18350144; DOI=10.1371/journal.pone.0001805;
RA Vallenet D., Nordmann P., Barbe V., Poirel L., Mangenot S., Bataille E.,
RA Dossat C., Gas S., Kreimeyer A., Lenoble P., Oztas S., Poulain J.,
RA Segurens B., Robert C., Abergel C., Claverie J.-M., Raoult D., Medigue C.,
RA Weissenbach J., Cruveiller S.;
RT "Comparative analysis of Acinetobacters: three genomes for three
RT lifestyles.";
RL PLoS ONE 3:E1805-E1805(2008).
CC -!- FUNCTION: O-methyltransferase that catalyzes the 2 O-methylation steps
CC in the ubiquinone biosynthetic pathway. {ECO:0000255|HAMAP-
CC Rule:MF_00472}.
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:0000255|HAMAP-
CC Rule:MF_00472};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a 3-(all-trans-polyprenyl)benzene-1,2-diol + S-adenosyl-L-
CC methionine = a 2-methoxy-6-(all-trans-polyprenyl)phenol + H(+) + S-
CC adenosyl-L-homocysteine; Xref=Rhea:RHEA:31411, Rhea:RHEA-COMP:9550,
CC Rhea:RHEA-COMP:9551, ChEBI:CHEBI:15378, ChEBI:CHEBI:57856,
CC ChEBI:CHEBI:59789, ChEBI:CHEBI:62729, ChEBI:CHEBI:62731;
CC EC=2.1.1.222; Evidence={ECO:0000255|HAMAP-Rule:MF_00472};
CC -!- PATHWAY: Cofactor biosynthesis; ubiquinone biosynthesis.
CC {ECO:0000255|HAMAP-Rule:MF_00472}.
CC -!- SIMILARITY: Belongs to the methyltransferase superfamily. UbiG/COQ3
CC family. {ECO:0000255|HAMAP-Rule:MF_00472}.
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DR EMBL; CU468230; CAO99460.1; -; Genomic_DNA.
DR AlphaFoldDB; B0VMN8; -.
DR SMR; B0VMN8; -.
DR EnsemblBacteria; CAO99460; CAO99460; ABSDF0045.
DR KEGG; abm:ABSDF0045; -.
DR HOGENOM; CLU_042432_5_0_6; -.
DR OMA; RGTHDWE; -.
DR UniPathway; UPA00232; -.
DR Proteomes; UP000001741; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProt.
DR GO; GO:0102208; F:2-polyprenyl-6-hydroxyphenol methylase activity; IEA:RHEA.
DR GO; GO:0008425; F:2-polyprenyl-6-methoxy-1,4-benzoquinone methyltransferase activity; IEA:InterPro.
DR GO; GO:0008689; F:3-demethylubiquinone-9 3-O-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 Gene3D; 3.40.50.150; -; 1.
DR HAMAP; MF_00472; UbiG; 1.
DR InterPro; IPR029063; SAM-dependent_MTases_sf.
DR InterPro; IPR010233; UbiG_MeTrfase.
DR SUPFAM; SSF53335; SSF53335; 1.
DR TIGRFAMs; TIGR01983; UbiG; 1.
PE 3: Inferred from homology;
KW Methyltransferase; S-adenosyl-L-methionine; Transferase;
KW Ubiquinone biosynthesis.
FT CHAIN 1..237
FT /note="Ubiquinone biosynthesis O-methyltransferase"
FT /id="PRO_1000199666"
FT BINDING 38
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00472"
FT BINDING 58
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00472"
FT BINDING 79
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00472"
FT BINDING 124
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00472"
SQ SEQUENCE 237 AA; 26601 MW; 263508B1F8465D7D CRC64;
MSQLNVDLQE IAKFEALAAK WWDQHSEFRP LHQINPLRLN WIDERAGGLA GKKVLDVGCG
GGILAESMAR RGADVLGIDM GEAPLAVGRL HAQQENVQNI EYRQIPVEEL AQEQAGQYDV
VTCMEMMEHV PDPASIVKAC QTLVKPGGHV FFSTINRNPK SYLFAIIGAE YVLRMLPKGT
HDYHKFIRPS EMAHDIRNAG LTLKEMTGLH YNPITKRYWL APNVDVNYMV HTIKTGV
