ID   TRMB_GRABC              Reviewed;         227 AA.
AC   Q0BPF6;
DT   29-MAY-2007, integrated into UniProtKB/Swiss-Prot.
DT   17-OCT-2006, sequence version 1.
DT   03-AUG-2022, entry version 92.
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=GbCGDNIH1_2398;
OS   Granulibacter bethesdensis (strain ATCC BAA-1260 / CGDNIH1).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rhodospirillales;
OC   Acetobacteraceae; Granulibacter.
OX   NCBI_TaxID=391165;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-1260 / CGDNIH1;
RX   PubMed=17827295; DOI=10.1128/jb.00793-07;
RA   Greenberg D.E., Porcella S.F., Zelazny A.M., Virtaneva K., Sturdevant D.E.,
RA   Kupko J.J. III, Barbian K.D., Babar A., Dorward D.W., Holland S.M.;
RT   "Genome sequence analysis of the emerging human pathogenic acetic acid
RT   bacterium Granulibacter bethesdensis.";
RL   J. Bacteriol. 189:8727-8736(2007).
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}.
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; CP000394; ABI63296.1; -; Genomic_DNA.
DR   RefSeq; WP_011633098.1; NC_008343.2.
DR   AlphaFoldDB; Q0BPF6; -.
DR   SMR; Q0BPF6; -.
DR   STRING; 391165.GbCGDNIH1_2398; -.
DR   EnsemblBacteria; ABI63296; ABI63296; GbCGDNIH1_2398.
DR   KEGG; gbe:GbCGDNIH1_2398; -.
DR   eggNOG; COG0220; Bacteria.
DR   HOGENOM; CLU_050910_0_3_5; -.
DR   OMA; PDPWHKS; -.
DR   UniPathway; UPA00989; -.
DR   Proteomes; UP000001963; 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..227
FT                   /note="tRNA (guanine-N(7)-)-methyltransferase"
FT                   /id="PRO_0000288153"
FT   REGION          1..21
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   ACT_SITE        136
FT                   /evidence="ECO:0000250"
FT   BINDING         54
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
FT   BINDING         79
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         206..209
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
SQ   SEQUENCE   227 AA;  26101 MW;  D750EDD5F2BA84BD CRC64;
     MPDMTMKSQP DRLYGRQRGH ALRPRQQRLL DLTLPRLRYA GPSSLRGVSP LWLEIGFGGG
     EHAVAQIEAH PDVTLIACEV FENGLCSLLS RLLPEPLDEE TAPLPGNLRV WDDDARPLLR
     DLPDQVLDRV FLMFPDPWPK ARHAKRRFVH PENAATLARV MKPGAEWRIA SDDPTYQAWV
     PEVMERQTAF ELLAVSNERP EGWPPTRYEA KAIRAGRQPL YWRYVRR