ID   MNMC_LEPBL              Reviewed;         652 AA.
AC   Q04XS7;
DT   02-SEP-2008, integrated into UniProtKB/Swiss-Prot.
DT   14-NOV-2006, sequence version 1.
DT   03-AUG-2022, entry version 86.
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=LBL_2779;
OS   Leptospira borgpetersenii serovar Hardjo-bovis (strain L550).
OC   Bacteria; Spirochaetes; Leptospirales; Leptospiraceae; Leptospira.
OX   NCBI_TaxID=355276;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=L550;
RX   PubMed=16973745; DOI=10.1073/pnas.0603979103;
RA   Bulach D.M., Zuerner R.L., Wilson P., Seemann T., McGrath A., Cullen P.A.,
RA   Davis J., Johnson M., Kuczek E., Alt D.P., Peterson-Burch B., Coppel R.L.,
RA   Rood J.I., Davies J.K., Adler B.;
RT   "Genome reduction in Leptospira borgpetersenii reflects limited
RT   transmission potential.";
RL   Proc. Natl. Acad. Sci. U.S.A. 103:14560-14565(2006).
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}.
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DR   EMBL; CP000348; ABJ80118.1; -; Genomic_DNA.
DR   RefSeq; WP_011671043.1; NC_008508.1.
DR   AlphaFoldDB; Q04XS7; -.
DR   SMR; Q04XS7; -.
DR   KEGG; lbl:LBL_2779; -.
DR   HOGENOM; CLU_022427_1_0_12; -.
DR   OMA; NFLCAWQ; -.
DR   OrthoDB; 912110at2; -.
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; S-adenosyl-L-methionine; Transferase; tRNA processing.
FT   CHAIN           1..652
FT                   /note="tRNA 5-methylaminomethyl-2-thiouridine biosynthesis
FT                   bifunctional protein MnmC"
FT                   /id="PRO_0000347995"
FT   REGION          1..227
FT                   /note="tRNA (mnm(5)s(2)U34)-methyltransferase"
FT   REGION          259..652
FT                   /note="FAD-dependent cmnm(5)s(2)U34 oxidoreductase"
SQ   SEQUENCE   652 AA;  73702 MW;  DD4347AA09DF3377 CRC64;
     MLSWKNDLTP VSDRFDDIYF SPENGLEETR HVFIGGNDLP DRWRNSNIQN PFCILELGFG
     TGLNFFATWK EYLKQDNRFR LHFISVEKFP LSRKEISKAV SAFPELEEIK EEFLSSYQDL
     IPGMNYFRFL EGKIHLTLFL GDVSDALCEI SGKADAIFLD GFAPSKNPEM WEESVLGNLK
     NVSKFGTTFS TFTVARTVRN SLSYAGFTLE KRPGFGKKRE MLTGKYSNYP SETKESLPKE
     KPWCKRSDPE SQIKTATIIG AGIAGSTLAY SLSKRGIQVF LIDPSGIANE TSGIPRAISH
     PHLTKIPGPI SLFTLRAFRY ALSFLSSFAD KDQFGKVGSF HGVTAEMNPE RFRKSIENHK
     LTEEIASWKP NGSDFHKNDP FNKELEEGVL FRNGFWTRPG SIARKCVDQP GIELIQATAN
     SFERIGSSWK LDLKESDQKV LADSIIFCNS YLIGKLASSL FEGEEIFPIN KVRGQLISLK
     ETENSSRVPN ILCAEHYLTP SVQGEHVLGS TFDEFDLNPK PRKKDTDLLL QYVQTKYPTL
     RFDSNCVLSE KTGFRAQTPD RFPIIGPIFD PKIFQETYKE IDLPRNRNKK FPNLKVIPGL
     YVFGGLGSRG ILSSFLGAEI LASLILGEPA PVEFSLLESL HPARFLYRRI RK