ID   MENG_ALKCK              Reviewed;         235 AA.
AC   Q5WGT4;
DT   15-MAR-2005, integrated into UniProtKB/Swiss-Prot.
DT   23-NOV-2004, sequence version 1.
DT   03-AUG-2022, entry version 99.
DE   RecName: Full=Demethylmenaquinone methyltransferase {ECO:0000255|HAMAP-Rule:MF_01813};
DE            EC=2.1.1.163 {ECO:0000255|HAMAP-Rule:MF_01813};
GN   Name=menG {ECO:0000255|HAMAP-Rule:MF_01813}; OrderedLocusNames=ABC1886;
OS   Alkalihalobacillus clausii (strain KSM-K16) (Bacillus clausii).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Alkalihalobacillus.
OX   NCBI_TaxID=66692;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=KSM-K16;
RA   Takaki Y., Kageyama Y., Shimamura S., Suzuki H., Nishi S., Hatada Y.,
RA   Kawai S., Ito S., Horikoshi K.;
RT   "The complete genome sequence of the alkaliphilic Bacillus clausii KSM-
RT   K16.";
RL   Submitted (OCT-2003) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Methyltransferase required for the conversion of
CC       demethylmenaquinol (DMKH2) to menaquinol (MKH2). {ECO:0000255|HAMAP-
CC       Rule:MF_01813}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=a 2-demethylmenaquinol + S-adenosyl-L-methionine = a
CC         menaquinol + H(+) + S-adenosyl-L-homocysteine; Xref=Rhea:RHEA:42640,
CC         Rhea:RHEA-COMP:9539, Rhea:RHEA-COMP:9563, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:18151, ChEBI:CHEBI:55437, ChEBI:CHEBI:57856,
CC         ChEBI:CHEBI:59789; EC=2.1.1.163; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_01813};
CC   -!- PATHWAY: Quinol/quinone metabolism; menaquinone biosynthesis;
CC       menaquinol from 1,4-dihydroxy-2-naphthoate: step 2/2.
CC       {ECO:0000255|HAMAP-Rule:MF_01813}.
CC   -!- SIMILARITY: Belongs to the class I-like SAM-binding methyltransferase
CC       superfamily. MenG/UbiE family. {ECO:0000255|HAMAP-Rule:MF_01813}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; AP006627; BAD64421.1; -; Genomic_DNA.
DR   RefSeq; WP_011246729.1; NC_006582.1.
DR   AlphaFoldDB; Q5WGT4; -.
DR   SMR; Q5WGT4; -.
DR   STRING; 66692.ABC1886; -.
DR   EnsemblBacteria; BAD64421; BAD64421; ABC1886.
DR   KEGG; bcl:ABC1886; -.
DR   eggNOG; COG2226; Bacteria.
DR   HOGENOM; CLU_037990_0_0_9; -.
DR   OMA; VRNFENL; -.
DR   OrthoDB; 1431378at2; -.
DR   UniPathway; UPA00079; UER00169.
DR   Proteomes; UP000001168; Chromosome.
DR   GO; GO:0043770; F:demethylmenaquinone methyltransferase activity; IEA:UniProtKB-EC.
DR   GO; GO:0102094; F:S-adenosylmethionine:2-demethylmenaquinol methyltransferase activity; IEA:UniProtKB-EC.
DR   GO; GO:0102955; F:S-adenosylmethionine:2-demethylmenaquinol-7 methyltransferase activity; IEA:UniProtKB-EC.
DR   GO; GO:0102027; F:S-adenosylmethionine:2-demethylquinol-8 methyltransferase activity; IEA:UniProtKB-EC.
DR   GO; GO:0009234; P:menaquinone biosynthetic process; IEA:UniProtKB-UniRule.
DR   GO; GO:0032259; P:methylation; IEA:UniProtKB-KW.
DR   Gene3D; 3.40.50.150; -; 1.
DR   HAMAP; MF_01813; MenG_UbiE_methyltr; 1.
DR   InterPro; IPR014122; MenG_heptapren.
DR   InterPro; IPR029063; SAM-dependent_MTases_sf.
DR   InterPro; IPR004033; UbiE/COQ5_MeTrFase.
DR   InterPro; IPR023576; UbiE/COQ5_MeTrFase_CS.
DR   Pfam; PF01209; Ubie_methyltran; 1.
DR   SUPFAM; SSF53335; SSF53335; 1.
DR   TIGRFAMs; TIGR02752; MenG_heptapren; 1.
DR   TIGRFAMs; TIGR01934; MenG_MenH_UbiE; 1.
DR   PROSITE; PS51608; SAM_MT_UBIE; 1.
DR   PROSITE; PS01183; UBIE_1; 1.
PE   3: Inferred from homology;
KW   Menaquinone biosynthesis; Methyltransferase; Reference proteome;
KW   S-adenosyl-L-methionine; Transferase.
FT   CHAIN           1..235
FT                   /note="Demethylmenaquinone methyltransferase"
FT                   /id="PRO_0000193245"
FT   BINDING         58
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01813"
FT   BINDING         79
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01813"
FT   BINDING         106..107
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01813"
SQ   SEQUENCE   235 AA;  26360 MW;  0ECDDA1C89ACA414 CRC64;
     MAQSKEQRVH DVFQSIYKKY DVMNSVISLQ QHKSWRKDTM KQMDVQAGTS ALDVCCGTGD
     WTLALSEAVG EQGSVIGLDF SENMLAVGRE KVAAAKRTNI SLVHGNAMAL PYDDNTFDYV
     TIGFGLRNVP DYMQVLQEMC RVAKPGGKIV CLETSQPTIP VFKQLYFFYF KRIMPLAGKV
     FAKKYEEYSW LQESTLAFPG KDKLRDMFVE AGMKDVTVKS YTGGVCAMHM GIKPI