ID   TRMB_ERYLH              Reviewed;         233 AA.
AC   Q2N5V5;
DT   29-MAY-2007, integrated into UniProtKB/Swiss-Prot.
DT   07-FEB-2006, sequence version 1.
DT   03-AUG-2022, entry version 88.
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=ELI_14220;
OS   Erythrobacter litoralis (strain HTCC2594).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Sphingomonadales;
OC   Erythrobacteraceae; Erythrobacter/Porphyrobacter group; Erythrobacter.
OX   NCBI_TaxID=314225;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=HTCC2594;
RX   PubMed=19168610; DOI=10.1128/jb.00026-09;
RA   Oh H.M., Giovannoni S.J., Ferriera S., Johnson J., Cho J.C.;
RT   "Complete genome sequence of Erythrobacter litoralis HTCC2594.";
RL   J. Bacteriol. 191:2419-2420(2009).
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; CP000157; ABC64936.1; -; Genomic_DNA.
DR   RefSeq; WP_011415758.1; NC_007722.1.
DR   AlphaFoldDB; Q2N5V5; -.
DR   SMR; Q2N5V5; -.
DR   STRING; 314225.ELI_14220; -.
DR   EnsemblBacteria; ABC64936; ABC64936; ELI_14220.
DR   KEGG; eli:ELI_14220; -.
DR   eggNOG; COG0220; Bacteria.
DR   HOGENOM; CLU_050910_0_3_5; -.
DR   OMA; PDPWHKS; -.
DR   OrthoDB; 1025521at2; -.
DR   UniPathway; UPA00989; -.
DR   Proteomes; UP000008808; Chromosome.
DR   GO; GO:0008176; F:tRNA (guanine-N7-)-methyltransferase activity; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.40.50.150; -; 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   PANTHER; PTHR23417; PTHR23417; 1.
DR   Pfam; PF02390; Methyltransf_4; 1.
DR   SUPFAM; SSF53335; SSF53335; 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..233
FT                   /note="tRNA (guanine-N(7)-)-methyltransferase"
FT                   /id="PRO_0000288146"
FT   ACT_SITE        136
FT                   /evidence="ECO:0000250"
FT   BINDING         62
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
FT   BINDING         87
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
FT   BINDING         114
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
FT   BINDING         136
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
FT   BINDING         140
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
FT   BINDING         172
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
FT   BINDING         211..214
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
SQ   SEQUENCE   233 AA;  26810 MW;  49B7EFD4AE3F780E CRC64;
     MTAFKQGDPT TLNRLYGRSI GKPLRTHQQH LVDNLLPQIS PPAEGPVTAE RLFGEDCPLH
     FEIGFGGGEH LVYRADLLPN HGFIGAEPFL NGVASCLSQV EEQRLANIRI HNGDALEVLD
     RVPDGALTML YLLHPDPWPK NKHAKRRMMN DGPVKMFADK LKPGGEFRFG TDHPVYLRHA
     LMVMRRHTDA FEWVVEGPSD WQNRPSGWPE TRYEHKARTK FGHEVWYFRF RRR