ID TRMB_CLOD6 Reviewed; 214 AA.
AC Q187Q1;
DT 29-MAY-2007, integrated into UniProtKB/Swiss-Prot.
DT 29-MAY-2007, sequence version 2.
DT 27-MAR-2024, entry version 97.
DE RecName: Full=tRNA (guanine-N(7)-)-methyltransferase {ECO:0000255|HAMAP-Rule:MF_01057};
DE EC=2.1.1.33 {ECO:0000255|HAMAP-Rule:MF_01057};
DE AltName: Full=tRNA (guanine(46)-N(7))-methyltransferase {ECO:0000255|HAMAP-Rule:MF_01057};
DE AltName: Full=tRNA(m7G46)-methyltransferase {ECO:0000255|HAMAP-Rule:MF_01057};
GN Name=trmB {ECO:0000255|HAMAP-Rule:MF_01057}; OrderedLocusNames=CD630_19420;
OS Clostridioides difficile (strain 630) (Peptoclostridium difficile).
OC Bacteria; Bacillota; Clostridia; Eubacteriales; Peptostreptococcaceae;
OC Clostridioides.
OX NCBI_TaxID=272563;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=630;
RX PubMed=16804543; DOI=10.1038/ng1830;
RA Sebaihia M., Wren B.W., Mullany P., Fairweather N.F., Minton N.,
RA Stabler R., Thomson N.R., Roberts A.P., Cerdeno-Tarraga A.M., Wang H.,
RA Holden M.T.G., Wright A., Churcher C., Quail M.A., Baker S., Bason N.,
RA Brooks K., Chillingworth T., Cronin A., Davis P., Dowd L., Fraser A.,
RA Feltwell T., Hance Z., Holroyd S., Jagels K., Moule S., Mungall K.,
RA Price C., Rabbinowitsch E., Sharp S., Simmonds M., Stevens K., Unwin L.,
RA Whithead S., Dupuy B., Dougan G., Barrell B., Parkhill J.;
RT "The multidrug-resistant human pathogen Clostridium difficile has a highly
RT mobile, mosaic genome.";
RL Nat. Genet. 38:779-786(2006).
CC -!- FUNCTION: Catalyzes the formation of N(7)-methylguanine at position 46
CC (m7G46) in tRNA. {ECO:0000255|HAMAP-Rule:MF_01057}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=guanosine(46) in tRNA + S-adenosyl-L-methionine = N(7)-
CC methylguanosine(46) in tRNA + S-adenosyl-L-homocysteine;
CC Xref=Rhea:RHEA:42708, Rhea:RHEA-COMP:10188, Rhea:RHEA-COMP:10189,
CC ChEBI:CHEBI:57856, ChEBI:CHEBI:59789, ChEBI:CHEBI:74269,
CC ChEBI:CHEBI:74480; EC=2.1.1.33; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_01057};
CC -!- PATHWAY: tRNA modification; N(7)-methylguanine-tRNA biosynthesis.
CC {ECO:0000255|HAMAP-Rule:MF_01057}.
CC -!- SIMILARITY: Belongs to the class I-like SAM-binding methyltransferase
CC superfamily. TrmB family. {ECO:0000255|HAMAP-Rule:MF_01057}.
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DR EMBL; AM180355; CAJ68817.2; -; Genomic_DNA.
DR RefSeq; WP_009889910.1; NZ_JAUPES010000023.1.
DR RefSeq; YP_001088448.2; NC_009089.1.
DR AlphaFoldDB; Q187Q1; -.
DR SMR; Q187Q1; -.
DR STRING; 272563.CD630_19420; -.
DR EnsemblBacteria; CAJ68817; CAJ68817; CD630_19420.
DR GeneID; 66354328; -.
DR KEGG; cdf:CD630_19420; -.
DR KEGG; pdc:CDIF630_02147; -.
DR PATRIC; fig|272563.120.peg.2039; -.
DR eggNOG; COG0220; Bacteria.
DR OrthoDB; 9802090at2; -.
DR PhylomeDB; Q187Q1; -.
DR BioCyc; PDIF272563:G12WB-2085-MONOMER; -.
DR UniPathway; UPA00989; -.
DR Proteomes; UP000001978; Chromosome.
DR GO; GO:0008176; F:tRNA (guanine(46)-N7)-methyltransferase activity; IEA:UniProtKB-UniRule.
DR Gene3D; 3.40.50.150; Vaccinia Virus protein VP39; 1.
DR HAMAP; MF_01057; tRNA_methyltr_TrmB; 1.
DR InterPro; IPR029063; SAM-dependent_MTases_sf.
DR InterPro; IPR003358; tRNA_(Gua-N-7)_MeTrfase_Trmb.
DR NCBIfam; TIGR00091; tRNA (guanosine(46)-N7)-methyltransferase TrmB; 1.
DR PANTHER; PTHR23417; 3-DEOXY-D-MANNO-OCTULOSONIC-ACID TRANSFERASE/TRNA GUANINE-N 7 - -METHYLTRANSFERASE; 1.
DR PANTHER; PTHR23417:SF14; PPR_LONG DOMAIN-CONTAINING PROTEIN; 1.
DR Pfam; PF02390; Methyltransf_4; 1.
DR SUPFAM; SSF53335; S-adenosyl-L-methionine-dependent methyltransferases; 1.
DR PROSITE; PS51625; SAM_MT_TRMB; 1.
PE 3: Inferred from homology;
KW Methyltransferase; Reference proteome; S-adenosyl-L-methionine;
KW Transferase; tRNA processing.
FT CHAIN 1..214
FT /note="tRNA (guanine-N(7)-)-methyltransferase"
FT /id="PRO_0000288138"
FT ACT_SITE 119
FT /evidence="ECO:0000250"
FT BINDING 45
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
FT BINDING 70
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
FT BINDING 97
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
FT BINDING 119
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
FT BINDING 123
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
FT BINDING 155
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
FT BINDING 192..195
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
SQ SEQUENCE 214 AA; 25378 MW; B4FCF6EE80BDC26C CRC64;
MRRRRKKGAD EKLLSYTKYV LRDDIDKLKG KWNLKFRNDN PIHVEFGTGK GKFITTLAKQ
NPDINYIAME LKEEVLLKAV EKADASNLNN ILFLWGDVSN ILDYFEAKEL SRIYINFCDP
WPKNRWSKRR LTHSGFLEMY NRVLEDDGEI HFKTDNEKLF EFSLNEIAAN NWLLKNISLD
LGNSEYENNV TTEYEDKFMS QGMRIFRCEA KKRN
//
