ID   TRMB_XANOM              Reviewed;         252 AA.
AC   Q2P0J4;
DT   04-APR-2006, integrated into UniProtKB/Swiss-Prot.
DT   07-FEB-2006, sequence version 1.
DT   27-MAR-2024, entry version 99.
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};
GN   OrderedLocusNames=XOO3178;
OS   Xanthomonas oryzae pv. oryzae (strain MAFF 311018).
OC   Bacteria; Pseudomonadota; Gammaproteobacteria; Xanthomonadales;
OC   Xanthomonadaceae; Xanthomonas.
OX   NCBI_TaxID=342109;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=MAFF 311018;
RA   Ochiai H., Inoue Y., Takeya M., Sasaki A., Kaku H.;
RT   "Genome sequence of Xanthomonas oryzae pv. oryzae suggests contribution of
RT   large numbers of effector genes and insertion sequences to its race
RT   diversity.";
RL   Jpn. Agric. Res. Q. 39:275-287(2005).
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; AP008229; BAE69933.1; -; Genomic_DNA.
DR   RefSeq; WP_011259853.1; NC_007705.1.
DR   AlphaFoldDB; Q2P0J4; -.
DR   SMR; Q2P0J4; -.
DR   KEGG; xom:XOO3178; -.
DR   HOGENOM; CLU_050910_0_1_6; -.
DR   UniPathway; UPA00989; -.
DR   GO; GO:0008176; F:tRNA (guanine(46)-N7)-methyltransferase activity; IEA:UniProtKB-UniRule.
DR   CDD; cd02440; AdoMet_MTases; 1.
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; S-adenosyl-L-methionine; Transferase; tRNA processing.
FT   CHAIN           1..252
FT                   /note="tRNA (guanine-N(7)-)-methyltransferase"
FT                   /id="PRO_0000229212"
FT   REGION          156..161
FT                   /note="Interaction with RNA"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
FT   ACT_SITE        150
FT                   /evidence="ECO:0000250"
FT   BINDING         75
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
FT   BINDING         100
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
FT   BINDING         127
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
FT   BINDING         150
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
FT   BINDING         154
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
FT   BINDING         186
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
FT   BINDING         223..226
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
SQ   SEQUENCE   252 AA;  28457 MW;  5A3AA0D5B4BEAB19 CRC64;
     MTDPFTSDGA KMPPKPFTIE AGRRQVRSFV LRQGRFTSAQ QRAFDELWPR FGLEYLGTPR
     DLAATFGRDT HKVLEIGFGN GAALRFAAQQ DPSRDYIGIE VHAPGVGRLL NALEEDGSTH
     VRLYHHDAVE VLEHEIADGA LDEVRIYFPD PWHKKRHNKR RLIQPAFAQL LVRKLRDGGR
     LHAATDWADY AEQMWDVLDA TPGLVNRAGP RGHVERPAWR PQTHFETRGQ KLGHGVWDLV
     YDRDPGVGSG DA
//