ID   TRMD_HELPY              Reviewed;         229 AA.
AC   O25766;
DT   15-DEC-1998, integrated into UniProtKB/Swiss-Prot.
DT   01-JAN-1998, sequence version 1.
DT   27-MAR-2024, entry version 128.
DE   RecName: Full=tRNA (guanine-N(1)-)-methyltransferase;
DE            EC=2.1.1.228;
DE   AltName: Full=M1G-methyltransferase;
DE   AltName: Full=tRNA [GM37] methyltransferase;
GN   Name=trmD; OrderedLocusNames=HP_1148;
OS   Helicobacter pylori (strain ATCC 700392 / 26695) (Campylobacter pylori).
OC   Bacteria; Campylobacterota; Epsilonproteobacteria; Campylobacterales;
OC   Helicobacteraceae; Helicobacter.
OX   NCBI_TaxID=85962;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 700392 / 26695;
RX   PubMed=9252185; DOI=10.1038/41483;
RA   Tomb J.-F., White O., Kerlavage A.R., Clayton R.A., Sutton G.G.,
RA   Fleischmann R.D., Ketchum K.A., Klenk H.-P., Gill S.R., Dougherty B.A.,
RA   Nelson K.E., Quackenbush J., Zhou L., Kirkness E.F., Peterson S.N.,
RA   Loftus B.J., Richardson D.L., Dodson R.J., Khalak H.G., Glodek A.,
RA   McKenney K., FitzGerald L.M., Lee N., Adams M.D., Hickey E.K., Berg D.E.,
RA   Gocayne J.D., Utterback T.R., Peterson J.D., Kelley J.M., Cotton M.D.,
RA   Weidman J.F., Fujii C., Bowman C., Watthey L., Wallin E., Hayes W.S.,
RA   Borodovsky M., Karp P.D., Smith H.O., Fraser C.M., Venter J.C.;
RT   "The complete genome sequence of the gastric pathogen Helicobacter
RT   pylori.";
RL   Nature 388:539-547(1997).
CC   -!- FUNCTION: Specifically methylates guanosine-37 in various tRNAs.
CC       {ECO:0000250}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=guanosine(37) in tRNA + S-adenosyl-L-methionine = H(+) + N(1)-
CC         methylguanosine(37) in tRNA + S-adenosyl-L-homocysteine;
CC         Xref=Rhea:RHEA:36899, Rhea:RHEA-COMP:10145, Rhea:RHEA-COMP:10147,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:57856, ChEBI:CHEBI:59789,
CC         ChEBI:CHEBI:73542, ChEBI:CHEBI:74269; EC=2.1.1.228;
CC   -!- SUBUNIT: Homodimer. {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000305}.
CC   -!- SIMILARITY: Belongs to the RNA methyltransferase TrmD family.
CC       {ECO:0000305}.
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DR   EMBL; AE000511; AAD08192.1; -; Genomic_DNA.
DR   PIR; D64663; D64663.
DR   RefSeq; NP_207939.1; NC_000915.1.
DR   RefSeq; WP_000672977.1; NC_018939.1.
DR   AlphaFoldDB; O25766; -.
DR   SMR; O25766; -.
DR   DIP; DIP-3681N; -.
DR   IntAct; O25766; 4.
DR   MINT; O25766; -.
DR   STRING; 85962.HP_1148; -.
DR   PaxDb; 85962-C694_05930; -.
DR   EnsemblBacteria; AAD08192; AAD08192; HP_1148.
DR   KEGG; hpy:HP_1148; -.
DR   PATRIC; fig|85962.47.peg.1232; -.
DR   eggNOG; COG0336; Bacteria.
DR   InParanoid; O25766; -.
DR   OrthoDB; 9807416at2; -.
DR   PhylomeDB; O25766; -.
DR   Proteomes; UP000000429; Chromosome.
DR   GO; GO:0005829; C:cytosol; IBA:GO_Central.
DR   GO; GO:0052906; F:tRNA (guanine(37)-N1)-methyltransferase activity; IBA:GO_Central.
DR   GO; GO:0002939; P:tRNA N1-guanine methylation; IBA:GO_Central.
DR   CDD; cd18080; TrmD-like; 1.
DR   Gene3D; 3.40.1280.10; -; 1.
DR   Gene3D; 1.10.1270.20; tRNA(m1g37)methyltransferase, domain 2; 1.
DR   HAMAP; MF_00605; TrmD; 1.
DR   InterPro; IPR029028; Alpha/beta_knot_MTases.
DR   InterPro; IPR023148; tRNA_m1G_MeTrfase_C_sf.
DR   InterPro; IPR002649; tRNA_m1G_MeTrfase_TrmD.
DR   InterPro; IPR029026; tRNA_m1G_MTases_N.
DR   InterPro; IPR016009; tRNA_MeTrfase_TRMD/TRM10.
DR   NCBIfam; TIGR00088; trmD; 1.
DR   PANTHER; PTHR46417; TRNA (GUANINE-N(1)-)-METHYLTRANSFERASE; 1.
DR   PANTHER; PTHR46417:SF1; TRNA (GUANINE-N(1)-)-METHYLTRANSFERASE; 1.
DR   Pfam; PF01746; tRNA_m1G_MT; 1.
DR   PIRSF; PIRSF000386; tRNA_mtase; 1.
DR   SUPFAM; SSF75217; alpha/beta knot; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Methyltransferase; Reference proteome; S-adenosyl-L-methionine;
KW   Transferase; tRNA processing.
FT   CHAIN           1..229
FT                   /note="tRNA (guanine-N(1)-)-methyltransferase"
FT                   /id="PRO_0000060388"
FT   BINDING         109
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000250"
FT   BINDING         129..134
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   229 AA;  25879 MW;  2D7135818A13D822 CRC64;
     MKFSVLTLFP QLVWPYFEDS ILKRALEKNL FELEVLNLRD FSANKYQKAD HTLIGGGAGQ
     ILDPEMVENA LHSVKNPKHT IFLSAVGKPF KQTDAMRLAQ KKHVVLVCGR YEGFDERSIE
     LGADEVFCIG DFILTGGELG ALCLIDSIAR HIQGVLGNAQ SLENESFENH YLEAPNFANA
     VFKSKEINKI PAPLEYSKGN HAKIKQLKLD LSKLRTKFYR LDLFKQHKS
//