ID   TRMFO_HELMI             Reviewed;         439 AA.
AC   B0TH93;
DT   02-SEP-2008, integrated into UniProtKB/Swiss-Prot.
DT   08-APR-2008, sequence version 1.
DT   03-AUG-2022, entry version 77.
DE   RecName: Full=Methylenetetrahydrofolate--tRNA-(uracil-5-)-methyltransferase TrmFO {ECO:0000255|HAMAP-Rule:MF_01037};
DE            EC=2.1.1.74 {ECO:0000255|HAMAP-Rule:MF_01037};
DE   AltName: Full=Folate-dependent tRNA (uracil-5-)-methyltransferase {ECO:0000255|HAMAP-Rule:MF_01037};
DE   AltName: Full=Folate-dependent tRNA(M-5-U54)-methyltransferase {ECO:0000255|HAMAP-Rule:MF_01037};
GN   Name=trmFO {ECO:0000255|HAMAP-Rule:MF_01037};
GN   OrderedLocusNames=Helmi_21430; ORFNames=HM1_2212;
OS   Heliobacterium modesticaldum (strain ATCC 51547 / Ice1).
OC   Bacteria; Firmicutes; Clostridia; Eubacteriales; Heliobacteriaceae;
OC   Heliomicrobium.
OX   NCBI_TaxID=498761;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 51547 / Ice1;
RX   PubMed=18441057; DOI=10.1128/jb.00299-08;
RA   Sattley W.M., Madigan M.T., Swingley W.D., Cheung P.C., Clocksin K.M.,
RA   Conrad A.L., Dejesa L.C., Honchak B.M., Jung D.O., Karbach L.E.,
RA   Kurdoglu A., Lahiri S., Mastrian S.D., Page L.E., Taylor H.L., Wang Z.T.,
RA   Raymond J., Chen M., Blankenship R.E., Touchman J.W.;
RT   "The genome of Heliobacterium modesticaldum, a phototrophic representative
RT   of the Firmicutes containing the simplest photosynthetic apparatus.";
RL   J. Bacteriol. 190:4687-4696(2008).
CC   -!- FUNCTION: Catalyzes the folate-dependent formation of 5-methyl-uridine
CC       at position 54 (M-5-U54) in all tRNAs. {ECO:0000255|HAMAP-
CC       Rule:MF_01037}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=(6R)-5,10-methylene-5,6,7,8-tetrahydrofolate + H(+) + NADH +
CC         uridine(54) in tRNA = (6S)-5,6,7,8-tetrahydrofolate + 5-
CC         methyluridine(54) in tRNA + NAD(+); Xref=Rhea:RHEA:16873, Rhea:RHEA-
CC         COMP:10167, Rhea:RHEA-COMP:10193, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:15636, ChEBI:CHEBI:57453, ChEBI:CHEBI:57540,
CC         ChEBI:CHEBI:57945, ChEBI:CHEBI:65315, ChEBI:CHEBI:74447; EC=2.1.1.74;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01037};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=(6R)-5,10-methylene-5,6,7,8-tetrahydrofolate + H(+) + NADPH +
CC         uridine(54) in tRNA = (6S)-5,6,7,8-tetrahydrofolate + 5-
CC         methyluridine(54) in tRNA + NADP(+); Xref=Rhea:RHEA:62372, Rhea:RHEA-
CC         COMP:10167, Rhea:RHEA-COMP:10193, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:15636, ChEBI:CHEBI:57453, ChEBI:CHEBI:57783,
CC         ChEBI:CHEBI:58349, ChEBI:CHEBI:65315, ChEBI:CHEBI:74447; EC=2.1.1.74;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01037};
CC   -!- COFACTOR:
CC       Name=FAD; Xref=ChEBI:CHEBI:57692;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01037};
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01037}.
CC   -!- SIMILARITY: Belongs to the MnmG family. TrmFO subfamily.
CC       {ECO:0000255|HAMAP-Rule:MF_01037}.
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DR   EMBL; CP000930; ABZ84768.1; -; Genomic_DNA.
DR   RefSeq; WP_012283268.1; NC_010337.2.
DR   AlphaFoldDB; B0TH93; -.
DR   SMR; B0TH93; -.
DR   STRING; 498761.HM1_2212; -.
DR   PRIDE; B0TH93; -.
DR   EnsemblBacteria; ABZ84768; ABZ84768; HM1_2212.
DR   KEGG; hmo:HM1_2212; -.
DR   eggNOG; COG1206; Bacteria.
DR   HOGENOM; CLU_033057_1_0_9; -.
DR   OMA; MHRNTFL; -.
DR   OrthoDB; 516534at2; -.
DR   Proteomes; UP000008550; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0030698; F:5,10-methylenetetrahydrofolate-dependent tRNA (m5U54) methyltransferase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0050660; F:flavin adenine dinucleotide binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0047151; F:methylenetetrahydrofolate-tRNA-(uracil-5-)-methyltransferase (FADH2-oxidizing) activity; IEA:UniProtKB-EC.
DR   Gene3D; 3.50.50.60; -; 2.
DR   HAMAP; MF_01037; TrmFO; 1.
DR   InterPro; IPR036188; FAD/NAD-bd_sf.
DR   InterPro; IPR002218; MnmG-rel.
DR   InterPro; IPR020595; MnmG-rel_CS.
DR   InterPro; IPR040131; MnmG_N.
DR   InterPro; IPR004417; TrmFO.
DR   PANTHER; PTHR11806; PTHR11806; 1.
DR   PANTHER; PTHR11806:SF2; PTHR11806:SF2; 1.
DR   Pfam; PF01134; GIDA; 1.
DR   SUPFAM; SSF51905; SSF51905; 1.
DR   TIGRFAMs; TIGR00137; gid_trmFO; 1.
DR   PROSITE; PS01281; GIDA_2; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; FAD; Flavoprotein; Methyltransferase; NAD; NADP;
KW   Reference proteome; Transferase; tRNA processing.
FT   CHAIN           1..439
FT                   /note="Methylenetetrahydrofolate--tRNA-(uracil-5-)-
FT                   methyltransferase TrmFO"
FT                   /id="PRO_0000346343"
FT   BINDING         7..12
FT                   /ligand="FAD"
FT                   /ligand_id="ChEBI:CHEBI:57692"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01037"
SQ   SEQUENCE   439 AA;  48614 MW;  A5C6D692D2747323 CRC64;
     MTVTIIGAGL AGAEAAWQIV RQGVPVQLFE MRPTEMTPAH KTGNFAELVC SNSLRGAALE
     NAVGLLKEEM RRLGSLIMEA ADAHAVPAGG ALAVDREGFS ACITEKLVNH PRITLCREEI
     REIPAARPLI IASGPLTSPA LSRAIQGLTG EDYFYFYDAA APIVYAESVD LSVAFWASRY
     DKGDADYLNC PMDESEYDRF YEALVTAEAH PLKEFEKEIY FEGCMPVEVM AKRGKQTLLF
     GPLKPVGLID PRTGRRPFAV VQLRKENRQG SMYNLVGFQT HLKWPEQKRV FRMIPGLEQA
     EFVRYGVMHR NTFINSPTLL LPTYQLRKDP SVFFAGQITG VEGYVESAAA GLVAGLNAAR
     LVQGRSPLRF PPETAIGALP AYITTAEAKH FQPMNVTYGL FPPLVEKVKG KRPRQQAHAR
     RALESLERFM AENLIVKEI