ID   MNMC_POLSJ              Reviewed;         637 AA.
AC   Q12B26;
DT   02-SEP-2008, integrated into UniProtKB/Swiss-Prot.
DT   22-AUG-2006, sequence version 1.
DT   03-AUG-2022, entry version 91.
DE   RecName: Full=tRNA 5-methylaminomethyl-2-thiouridine biosynthesis bifunctional protein MnmC {ECO:0000255|HAMAP-Rule:MF_01102};
DE            Short=tRNA mnm(5)s(2)U biosynthesis bifunctional protein {ECO:0000255|HAMAP-Rule:MF_01102};
DE   Includes:
DE     RecName: Full=tRNA (mnm(5)s(2)U34)-methyltransferase {ECO:0000255|HAMAP-Rule:MF_01102};
DE              EC=2.1.1.61 {ECO:0000255|HAMAP-Rule:MF_01102};
DE   Includes:
DE     RecName: Full=FAD-dependent cmnm(5)s(2)U34 oxidoreductase {ECO:0000255|HAMAP-Rule:MF_01102};
DE              EC=1.5.-.- {ECO:0000255|HAMAP-Rule:MF_01102};
GN   Name=mnmC {ECO:0000255|HAMAP-Rule:MF_01102}; OrderedLocusNames=Bpro_2343;
OS   Polaromonas sp. (strain JS666 / ATCC BAA-500).
OC   Bacteria; Proteobacteria; Betaproteobacteria; Burkholderiales;
OC   Comamonadaceae; Polaromonas; unclassified Polaromonas.
OX   NCBI_TaxID=296591;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=JS666 / ATCC BAA-500;
RX   PubMed=18723656; DOI=10.1128/aem.00197-08;
RA   Mattes T.E., Alexander A.K., Richardson P.M., Munk A.C., Han C.S.,
RA   Stothard P., Coleman N.V.;
RT   "The genome of Polaromonas sp. strain JS666: insights into the evolution of
RT   a hydrocarbon- and xenobiotic-degrading bacterium, and features of
RT   relevance to biotechnology.";
RL   Appl. Environ. Microbiol. 74:6405-6416(2008).
CC   -!- FUNCTION: Catalyzes the last two steps in the biosynthesis of 5-
CC       methylaminomethyl-2-thiouridine (mnm(5)s(2)U) at the wobble position
CC       (U34) in tRNA. Catalyzes the FAD-dependent demodification of
CC       cmnm(5)s(2)U34 to nm(5)s(2)U34, followed by the transfer of a methyl
CC       group from S-adenosyl-L-methionine to nm(5)s(2)U34, to form
CC       mnm(5)s(2)U34. {ECO:0000255|HAMAP-Rule:MF_01102}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=5-aminomethyl-2-thiouridine(34) in tRNA + S-adenosyl-L-
CC         methionine = 5-methylaminomethyl-2-thiouridine(34) in tRNA + H(+) +
CC         S-adenosyl-L-homocysteine; Xref=Rhea:RHEA:19569, Rhea:RHEA-
CC         COMP:10195, Rhea:RHEA-COMP:10197, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:57856, ChEBI:CHEBI:59789, ChEBI:CHEBI:74454,
CC         ChEBI:CHEBI:74455; EC=2.1.1.61; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_01102};
CC   -!- COFACTOR:
CC       Name=FAD; Xref=ChEBI:CHEBI:57692;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01102};
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01102}.
CC   -!- SIMILARITY: In the N-terminal section; belongs to the methyltransferase
CC       superfamily. tRNA (mnm(5)s(2)U34)-methyltransferase family.
CC       {ECO:0000255|HAMAP-Rule:MF_01102}.
CC   -!- SIMILARITY: In the C-terminal section; belongs to the DAO family.
CC       {ECO:0000255|HAMAP-Rule:MF_01102}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; CP000316; ABE44266.1; -; Genomic_DNA.
DR   RefSeq; WP_011483264.1; NC_007948.1.
DR   AlphaFoldDB; Q12B26; -.
DR   SMR; Q12B26; -.
DR   STRING; 296591.Bpro_2343; -.
DR   EnsemblBacteria; ABE44266; ABE44266; Bpro_2343.
DR   KEGG; pol:Bpro_2343; -.
DR   eggNOG; COG0665; Bacteria.
DR   eggNOG; COG4121; Bacteria.
DR   HOGENOM; CLU_022427_1_0_4; -.
DR   OMA; NFLCAWQ; -.
DR   OrthoDB; 912110at2; -.
DR   Proteomes; UP000001983; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0050660; F:flavin adenine dinucleotide binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0016645; F:oxidoreductase activity, acting on the CH-NH group of donors; IEA:InterPro.
DR   GO; GO:0004808; F:tRNA (5-methylaminomethyl-2-thiouridylate)-methyltransferase activity; IEA:UniProtKB-EC.
DR   GO; GO:0002097; P:tRNA wobble base modification; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.40.50.150; -; 1.
DR   Gene3D; 3.50.50.60; -; 1.
DR   HAMAP; MF_01102; MnmC; 1.
DR   InterPro; IPR006076; FAD-dep_OxRdtase.
DR   InterPro; IPR036188; FAD/NAD-bd_sf.
DR   InterPro; IPR008471; MnmC-like_methylTransf.
DR   InterPro; IPR029063; SAM-dependent_MTases_sf.
DR   InterPro; IPR023032; tRNA_MAMT_biosynth_bifunc_MnmC.
DR   InterPro; IPR017610; tRNA_S-uridine_synth_MnmC_C.
DR   Pfam; PF01266; DAO; 1.
DR   Pfam; PF05430; Methyltransf_30; 1.
DR   SUPFAM; SSF51905; SSF51905; 1.
DR   TIGRFAMs; TIGR03197; MnmC_Cterm; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; FAD; Flavoprotein; Methyltransferase; Multifunctional enzyme;
KW   Oxidoreductase; Reference proteome; S-adenosyl-L-methionine; Transferase;
KW   tRNA processing.
FT   CHAIN           1..637
FT                   /note="tRNA 5-methylaminomethyl-2-thiouridine biosynthesis
FT                   bifunctional protein MnmC"
FT                   /id="PRO_0000348008"
FT   REGION          1..232
FT                   /note="tRNA (mnm(5)s(2)U34)-methyltransferase"
FT   REGION          255..637
FT                   /note="FAD-dependent cmnm(5)s(2)U34 oxidoreductase"
SQ   SEQUENCE   637 AA;  68420 MW;  EF7E33D1225777F5 CRC64;
     MPERIEWLED GTPYSPRFGD RYRSESGGLD QAREVFLKGC GLPAAWAGQP QWCVLETGFG
     LGLNFLVTWQ AWKTDPLRPR LLHFVSTEAF PASAADVLRS VQVHPELLPL ARQLHDQLWG
     LLPGFHRLVF EEGRVMLTLC IGDAKAMLRE QSFEADSVYL DGFNPGLKPA DSPDIWDLHT
     FKAVARCCRR GTRVATWTVA RSVRDALAQC GFVVKKTPGI PPKRDNLQGE FNPAWEPKKS
     MLPGIRRQAG SCVVIGAGLA GAAVAASLAR RGWRVVVLDA ADAPARGASG LPAGVLAPHV
     SPDDSLLSRL SRSGVRATLQ QAHALLDAGT DWNPTGVLEH CVDHARKLPA AWQSDWAEAA
     QDWTCLATSG QLAHCRLPAS APALWHVRAG WIKPASLVQA WLTTPGVEFH DHASVGQLIR
     QPDSWQVLDA NGHVLACAEL VVLAAGYASR ALAEAAVPPT SPPLALQAIR GQVSWALHPP
     GAADALPAFP VNGHGSLIPA LPLSGNANEL AWVTGSTFER DNALNDLKPE DDSHNLDRLR
     TLLPDVAPGL TGQLEMGQVK AWAGVRCATP SRLPALGPLA APNLWVCSGM GSRGLTFAAL
     CAELLAARLH AEPLPLEQRL AEALRPQYGE AKLVSED