TRMB_METFK
ID TRMB_METFK Reviewed; 238 AA.
AC Q1H4T5;
DT 29-MAY-2007, integrated into UniProtKB/Swiss-Prot.
DT 27-JUN-2006, sequence version 1.
DT 03-AUG-2022, entry version 87.
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=Mfla_0231;
OS Methylobacillus flagellatus (strain KT / ATCC 51484 / DSM 6875).
OC Bacteria; Proteobacteria; Betaproteobacteria; Nitrosomonadales;
OC Methylophilaceae; Methylobacillus.
OX NCBI_TaxID=265072;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=KT / ATCC 51484 / DSM 6875;
RG US DOE Joint Genome Institute;
RA Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S.,
RA Brettin T., Bruce D., Han C., Tapia R., Saunders E., Gilna P., Schmutz J.,
RA Larimer F., Land M., Kyrpides N., Anderson I., Richardson P.;
RT "Complete sequence of Methylobacillus flagellatus KT.";
RL Submitted (MAR-2006) to the EMBL/GenBank/DDBJ databases.
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; CP000284; ABE48502.1; -; Genomic_DNA.
DR AlphaFoldDB; Q1H4T5; -.
DR SMR; Q1H4T5; -.
DR STRING; 265072.Mfla_0231; -.
DR EnsemblBacteria; ABE48502; ABE48502; Mfla_0231.
DR KEGG; mfa:Mfla_0231; -.
DR eggNOG; COG0220; Bacteria.
DR HOGENOM; CLU_050910_0_1_4; -.
DR OMA; PDPWHKS; -.
DR UniPathway; UPA00989; -.
DR Proteomes; UP000002440; 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 TIGRFAMs; TIGR00091; TIGR00091; 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..238
FT /note="tRNA (guanine-N(7)-)-methyltransferase"
FT /id="PRO_0000288179"
FT ACT_SITE 146
FT /evidence="ECO:0000250"
FT BINDING 71
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
FT BINDING 96
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
FT BINDING 123
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
FT BINDING 146
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
FT BINDING 150
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
FT BINDING 182
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
FT BINDING 217..220
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
SQ SEQUENCE 238 AA; 27021 MW; FCE94BFE65F533A2 CRC64;
MAQEMTGNEN IGKEELARRP IRSFVLRQGR LTHAQQRALD ELMPVFGVPY APVILDLDSL
FGREGSPKVL EIGFGMGDST AKIAQSQPEC DFIGVEVHTP GVGSLLKQIG ELQLNNLRII
QHDAVEVLQH MIADASLDGV HIFFPDPWHK KRHHKRRLIQ AAFVKLLCSK MKAGAYLHVA
TDWQEYAEWV LDILQQEPLL ENTAQSYAPK PDYRPLTKFE NRGIKLGHGV WDIIFRRK
