TRMB_SPHAL
ID TRMB_SPHAL Reviewed; 237 AA.
AC Q1GNC9;
DT 29-MAY-2007, integrated into UniProtKB/Swiss-Prot.
DT 29-MAY-2007, sequence version 2.
DT 03-AUG-2022, entry version 82.
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=Sala_3140;
OS Sphingopyxis alaskensis (strain DSM 13593 / LMG 18877 / RB2256)
OS (Sphingomonas alaskensis).
OC Bacteria; Proteobacteria; Alphaproteobacteria; Sphingomonadales;
OC Sphingomonadaceae; Sphingopyxis.
OX NCBI_TaxID=317655;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 13593 / LMG 18877 / RB2256;
RX PubMed=19805210; DOI=10.1073/pnas.0903507106;
RA Lauro F.M., McDougald D., Thomas T., Williams T.J., Egan S., Rice S.,
RA DeMaere M.Z., Ting L., Ertan H., Johnson J., Ferriera S., Lapidus A.,
RA Anderson I., Kyrpides N., Munk A.C., Detter C., Han C.S., Brown M.V.,
RA Robb F.T., Kjelleberg S., Cavicchioli R.;
RT "The genomic basis of trophic strategy in marine bacteria.";
RL Proc. Natl. Acad. Sci. U.S.A. 106:15527-15533(2009).
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 -!- SEQUENCE CAUTION:
CC Sequence=ABF54843.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR EMBL; CP000356; ABF54843.1; ALT_INIT; Genomic_DNA.
DR RefSeq; WP_041383459.1; NC_008048.1.
DR AlphaFoldDB; Q1GNC9; -.
DR SMR; Q1GNC9; -.
DR STRING; 317655.Sala_3140; -.
DR EnsemblBacteria; ABF54843; ABF54843; Sala_3140.
DR KEGG; sal:Sala_3140; -.
DR eggNOG; COG0220; Bacteria.
DR HOGENOM; CLU_050910_0_3_5; -.
DR OrthoDB; 1025521at2; -.
DR UniPathway; UPA00989; -.
DR Proteomes; UP000006578; 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..237
FT /note="tRNA (guanine-N(7)-)-methyltransferase"
FT /id="PRO_0000288231"
FT REGION 1..24
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 141
FT /evidence="ECO:0000250"
FT BINDING 62
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
FT BINDING 87
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
FT BINDING 119
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
FT BINDING 141
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
FT BINDING 145
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
FT BINDING 177
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
FT BINDING 216..219
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01057"
SQ SEQUENCE 237 AA; 26942 MW; EA69A60E7C4A03B4 CRC64;
MTAHKPGDPT TLNRLYGRSK GKPLRAGQQD LVDTLLPQIA VPLDGEVTAR RLFGFDRPLH
FEIGFGGGEH MAARADMLPD HGFIGAEPFI NGVAQALVHV AGDHGQHPPL GNVRIHHGDA
LEVLRRIPDG ALAFVYLLHP DPWPKARHAK RRMMNDGPLD LIAAKLKPGG EFRFGTDHPI
YLRHALMVMR RHRHQFEWLA KDARDFQVRP GGWPETRYEA KARAQGHEVW YFRWRRR
