ID   TRMB_NOCFA              Reviewed;         269 AA.
AC   Q5YNA5;
DT   15-FEB-2005, integrated into UniProtKB/Swiss-Prot.
DT   23-NOV-2004, sequence version 1.
DT   27-MAR-2024, entry version 104.
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=NFA_54840;
OS   Nocardia farcinica (strain IFM 10152).
OC   Bacteria; Actinomycetota; Actinomycetes; Mycobacteriales; Nocardiaceae;
OC   Nocardia.
OX   NCBI_TaxID=247156;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=IFM 10152;
RX   PubMed=15466710; DOI=10.1073/pnas.0406410101;
RA   Ishikawa J., Yamashita A., Mikami Y., Hoshino Y., Kurita H., Hotta K.,
RA   Shiba T., Hattori M.;
RT   "The complete genomic sequence of Nocardia farcinica IFM 10152.";
RL   Proc. Natl. Acad. Sci. U.S.A. 101:14925-14930(2004).
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; AP006618; BAD60336.1; -; Genomic_DNA.
DR   RefSeq; WP_011212018.1; NC_006361.1.
DR   AlphaFoldDB; Q5YNA5; -.
DR   SMR; Q5YNA5; -.
DR   STRING; 247156.NFA_54840; -.
DR   GeneID; 61136053; -.
DR   KEGG; nfa:NFA_54840; -.
DR   eggNOG; COG0220; Bacteria.
DR   HOGENOM; CLU_050910_0_2_11; -.
DR   UniPathway; UPA00989; -.
DR   Proteomes; UP000006820; 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..269
FT                   /note="tRNA (guanine-N(7)-)-methyltransferase"
FT                   /id="PRO_0000171365"
FT   REGION          1..38
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   ACT_SITE        166
FT                   /evidence="ECO:0000250"
FT   BINDING         91
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
FT   BINDING         116
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
FT   BINDING         143
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
FT   BINDING         166
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
FT   BINDING         170
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
FT   BINDING         202
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
FT   BINDING         247..250
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
SQ   SEQUENCE   269 AA;  28933 MW;  047088073EC83495 CRC64;
     MDGVNDAANH TVESVPGRPS TASAPLEAGR RSPTGSRLYP RVTSFRSRRG ALTPNQQGAW
     DRMWPRIGRE VGDEPLDADA WFGRQAPLVI EIGCGTGTAT AAMAAAEPHV NLIGIEVYQP
     GLAQLVQRIE RDGIDNIRLL RGDAVDVLEH MIAAESLTGV RVFFPDPWPK ARHHKRRLLQ
     PATVALIAGR LRPGGVLHVA TDHAGYAEHI AAVGAAEPLL VGLNEATGGD DERARTLAPI
     GLDRPVTKFE DKAHRAGSAI TEFVWGKIE
//