ID   TRMB_VANPO              Reviewed;         286 AA.
AC   A7TT36;
DT   05-MAY-2009, integrated into UniProtKB/Swiss-Prot.
DT   02-OCT-2007, sequence version 1.
DT   03-AUG-2022, entry version 76.
DE   RecName: Full=tRNA (guanine-N(7)-)-methyltransferase {ECO:0000255|HAMAP-Rule:MF_03055};
DE            EC=2.1.1.33 {ECO:0000255|HAMAP-Rule:MF_03055};
DE   AltName: Full=Transfer RNA methyltransferase 8 {ECO:0000255|HAMAP-Rule:MF_03055};
DE   AltName: Full=tRNA (guanine(46)-N(7))-methyltransferase {ECO:0000255|HAMAP-Rule:MF_03055};
DE   AltName: Full=tRNA(m7G46)-methyltransferase {ECO:0000255|HAMAP-Rule:MF_03055};
GN   Name=TRM8 {ECO:0000255|HAMAP-Rule:MF_03055}; ORFNames=Kpol_269p6;
OS   Vanderwaltozyma polyspora (strain ATCC 22028 / DSM 70294 / BCRC 21397 / CBS
OS   2163 / NBRC 10782 / NRRL Y-8283 / UCD 57-17) (Kluyveromyces polysporus).
OC   Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes;
OC   Saccharomycetales; Saccharomycetaceae; Vanderwaltozyma.
OX   NCBI_TaxID=436907;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 22028 / DSM 70294 / BCRC 21397 / CBS 2163 / NBRC 10782 / NRRL
RC   Y-8283 / UCD 57-17;
RX   PubMed=17494770; DOI=10.1073/pnas.0608218104;
RA   Scannell D.R., Frank A.C., Conant G.C., Byrne K.P., Woolfit M., Wolfe K.H.;
RT   "Independent sorting-out of thousands of duplicated gene pairs in two yeast
RT   species descended from a whole-genome duplication.";
RL   Proc. Natl. Acad. Sci. U.S.A. 104:8397-8402(2007).
CC   -!- FUNCTION: Catalyzes the formation of N(7)-methylguanine at position 46
CC       (m7G46) in tRNA. {ECO:0000255|HAMAP-Rule:MF_03055}.
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_03055};
CC   -!- PATHWAY: tRNA modification; N(7)-methylguanine-tRNA biosynthesis.
CC       {ECO:0000255|HAMAP-Rule:MF_03055}.
CC   -!- SUBUNIT: Forms a complex with TRM82. {ECO:0000255|HAMAP-Rule:MF_03055}.
CC   -!- SUBCELLULAR LOCATION: Nucleus {ECO:0000255|HAMAP-Rule:MF_03055}.
CC   -!- SIMILARITY: Belongs to the class I-like SAM-binding methyltransferase
CC       superfamily. TrmB family. {ECO:0000255|HAMAP-Rule:MF_03055}.
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DR   EMBL; DS480540; EDO14572.1; -; Genomic_DNA.
DR   RefSeq; XP_001642430.1; XM_001642380.1.
DR   AlphaFoldDB; A7TT36; -.
DR   SMR; A7TT36; -.
DR   STRING; 436907.A7TT36; -.
DR   EnsemblFungi; EDO14572; EDO14572; Kpol_269p6.
DR   GeneID; 5542586; -.
DR   KEGG; vpo:Kpol_269p6; -.
DR   eggNOG; KOG3115; Eukaryota.
DR   HOGENOM; CLU_050910_3_1_1; -.
DR   InParanoid; A7TT36; -.
DR   OMA; DLHNWMV; -.
DR   OrthoDB; 1417652at2759; -.
DR   PhylomeDB; A7TT36; -.
DR   UniPathway; UPA00989; -.
DR   Proteomes; UP000000267; Unassembled WGS sequence.
DR   GO; GO:0005634; C:nucleus; IEA:UniProtKB-SubCell.
DR   GO; GO:0008176; F:tRNA (guanine-N7-)-methyltransferase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0000049; F:tRNA binding; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.40.50.150; -; 1.
DR   HAMAP; MF_03055; tRNA_methyltr_TrmB_euk; 1.
DR   InterPro; IPR029063; SAM-dependent_MTases_sf.
DR   InterPro; IPR025763; Trm8_euk.
DR   InterPro; IPR003358; tRNA_(Gua-N-7)_MeTrfase_Trmb.
DR   PANTHER; PTHR23417; PTHR23417; 1.
DR   PANTHER; PTHR23417:SF16; PTHR23417:SF16; 1.
DR   Pfam; PF02390; Methyltransf_4; 1.
DR   SUPFAM; SSF53335; SSF53335; 1.
DR   TIGRFAMs; TIGR00091; TIGR00091; 1.
DR   PROSITE; PS51625; SAM_MT_TRMB; 1.
PE   3: Inferred from homology;
KW   Methyltransferase; Nucleus; Reference proteome; RNA-binding;
KW   S-adenosyl-L-methionine; Transferase; tRNA processing; tRNA-binding.
FT   CHAIN           1..286
FT                   /note="tRNA (guanine-N(7)-)-methyltransferase"
FT                   /id="PRO_0000370605"
FT   ACT_SITE        184
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03055"
FT   BINDING         103
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03055"
FT   BINDING         126..127
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03055"
FT   BINDING         161..162
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03055"
FT   BINDING         181
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03055"
FT   BINDING         259..261
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03055"
SQ   SEQUENCE   286 AA;  33804 MW;  2BBAED087EC7B1D7 CRC64;
     MDLRNPNRDP NSRRVLYRTN KEENRKELKH VKIDESTLAQ EGKKLDLPKK RFYRQRAHSN
     PFSDHQLDYP TSPDDMNWSK LFPHYYDSTT GKMTKDVTIA DIGCGFGGLL IDLSPAFPED
     LILGMEIRVQ VTNYVEDRII ALRTNHAKDY QYQNINVIRG NAMKFLPNFF QRAQLSKMFF
     CFPDPHFKQR KHKARIITNT LLSEYAYVLK DNGVIYTITD VEDLHNWMVK HLEEHPLFER
     YDKEWEDNDK CVQIMRNATE EGKKVERKKG DKFVACFRRL PNPAIV