ID L0IQV2_9MYCO Unreviewed; 260 AA.
AC L0IQV2;
DT 06-MAR-2013, integrated into UniProtKB/TrEMBL.
DT 06-MAR-2013, sequence version 1.
DT 24-JAN-2024, entry version 59.
DE RecName: Full=tRNA (guanine-N(7)-)-methyltransferase {ECO:0000256|HAMAP-Rule:MF_01057};
DE EC=2.1.1.33 {ECO:0000256|HAMAP-Rule:MF_01057};
DE AltName: Full=tRNA (guanine(46)-N(7))-methyltransferase {ECO:0000256|HAMAP-Rule:MF_01057};
DE AltName: Full=tRNA(m7G46)-methyltransferase {ECO:0000256|HAMAP-Rule:MF_01057};
GN Name=trmB {ECO:0000256|HAMAP-Rule:MF_01057};
GN ORFNames=Mycsm_00140 {ECO:0000313|EMBL:AGB20601.1};
OS Mycobacterium sp. JS623.
OC Bacteria; Actinomycetota; Actinomycetes; Mycobacteriales; Mycobacteriaceae;
OC Mycobacterium.
OX NCBI_TaxID=212767 {ECO:0000313|EMBL:AGB20601.1, ECO:0000313|Proteomes:UP000010844};
RN [1] {ECO:0000313|Proteomes:UP000010844}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=JS623 {ECO:0000313|Proteomes:UP000010844};
RG US DOE Joint Genome Institute;
RA Lucas S., Han J., Lapidus A., Cheng J.-F., Goodwin L., Pitluck S.,
RA Peters L., Teshima H., Detter J.C., Han C., Tapia R., Land M., Hauser L.,
RA Kyrpides N., Ivanova N., Pagani I., Mattes T., Holmes A., Rutledge P.,
RA Paulsen I., Coleman N., Woyke T.;
RT "Complete sequence of chromosome of Mycobacterium smegmatis JS623.";
RL Submitted (OCT-2011) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Catalyzes the formation of N(7)-methylguanine at position 46
CC (m7G46) in tRNA. {ECO:0000256|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:0000256|HAMAP-
CC Rule:MF_01057};
CC -!- PATHWAY: tRNA modification; N(7)-methylguanine-tRNA biosynthesis.
CC {ECO:0000256|HAMAP-Rule:MF_01057}.
CC -!- SIMILARITY: Belongs to the class I-like SAM-binding methyltransferase
CC superfamily. TrmB family. {ECO:0000256|HAMAP-Rule:MF_01057}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_01057}.
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DR EMBL; CP003078; AGB20601.1; -; Genomic_DNA.
DR AlphaFoldDB; L0IQV2; -.
DR STRING; 212767.Mycsm_00140; -.
DR KEGG; msa:Mycsm_00140; -.
DR PATRIC; fig|710686.3.peg.138; -.
DR HOGENOM; CLU_050910_0_2_11; -.
DR UniPathway; UPA00989; -.
DR Proteomes; UP000010844; Chromosome.
DR GO; GO:0008176; F:tRNA (guanine(46)-N7)-methyltransferase activity; IEA:UniProtKB-UniRule.
DR CDD; cd02440; AdoMet_MTases; 1.
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 {ECO:0000256|HAMAP-Rule:MF_01057,
KW ECO:0000313|EMBL:AGB20601.1};
KW S-adenosyl-L-methionine {ECO:0000256|HAMAP-Rule:MF_01057};
KW Transferase {ECO:0000256|HAMAP-Rule:MF_01057, ECO:0000313|EMBL:AGB20601.1};
KW tRNA processing {ECO:0000256|ARBA:ARBA00022694, ECO:0000256|HAMAP-
KW Rule:MF_01057}.
FT REGION 13..33
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT BINDING 91
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01057"
FT BINDING 116
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01057"
FT BINDING 143
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01057"
FT BINDING 166
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01057"
FT BINDING 170
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01057"
FT BINDING 202
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01057"
FT BINDING 238..241
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01057"
SQ SEQUENCE 260 AA; 28284 MW; 737CF1E3B38811EC CRC64;
MGINLYHDAG TQLSMSDHGR MQTPGPDIAS PHLHPRVTSF RTRRSTLSGG QQATWERLWP
EMGMQARDAD GPASLLDTEA WFGRSAPVVL EIGSGTGIST LAMATAEPHL DVVAVEVYKR
GLAQLLSAID REGVTNIRLV RGDGVDVLEH MFGPHSLTGV RVFFPDPWPK ARHHKRRLLQ
PATVALIADR LRSGGVLHTA TDHAGYAEQI AEVGDAEPRL RRVSASDPLP ISVQRPVTKY
EGKAQHAGSA VAELLWVKQP
//
