ID   MNMC_CITK8              Reviewed;         666 AA.
AC   A8ADQ4;
DT   02-SEP-2008, integrated into UniProtKB/Swiss-Prot.
DT   02-SEP-2008, sequence version 2.
DT   03-AUG-2022, entry version 77.
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=CKO_00461;
OS   Citrobacter koseri (strain ATCC BAA-895 / CDC 4225-83 / SGSC4696).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Citrobacter.
OX   NCBI_TaxID=290338;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-895 / CDC 4225-83 / SGSC4696;
RG   The Citrobacter koseri Genome Sequencing Project;
RA   McClelland M., Sanderson E.K., Porwollik S., Spieth J., Clifton W.S.,
RA   Latreille P., Courtney L., Wang C., Pepin K., Bhonagiri V., Nash W.,
RA   Johnson M., Thiruvilangam P., Wilson R.;
RL   Submitted (AUG-2007) to the EMBL/GenBank/DDBJ databases.
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   -!- SEQUENCE CAUTION:
CC       Sequence=ABV11617.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; CP000822; ABV11617.1; ALT_INIT; Genomic_DNA.
DR   RefSeq; WP_024130149.1; NC_009792.1.
DR   AlphaFoldDB; A8ADQ4; -.
DR   SMR; A8ADQ4; -.
DR   STRING; 290338.CKO_00461; -.
DR   EnsemblBacteria; ABV11617; ABV11617; CKO_00461.
DR   GeneID; 45134708; -.
DR   KEGG; cko:CKO_00461; -.
DR   HOGENOM; CLU_022427_1_0_6; -.
DR   Proteomes; UP000008148; 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..666
FT                   /note="tRNA 5-methylaminomethyl-2-thiouridine biosynthesis
FT                   bifunctional protein MnmC"
FT                   /id="PRO_0000347976"
FT   REGION          1..245
FT                   /note="tRNA (mnm(5)s(2)U34)-methyltransferase"
FT   REGION          270..666
FT                   /note="FAD-dependent cmnm(5)s(2)U34 oxidoreductase"
SQ   SEQUENCE   666 AA;  73605 MW;  F7C3EE183139E060 CRC64;
     MKQYAIQPAN LEFNAEGTPV SRDFDDVYFS NDNGLEETRY VFLGGNQLEE RFPLHPRPLF
     VVAESGFGTG LNFLTLWQAF SQFRDAHPEA TLQRLHFISF EKFPLTQADL ALAHQHWPEL
     APWAQQLHAQ WPLPLAGCHR LILDDGRVTL DLWFGDINEL TGKLDESLNQ KVDAWFLDGF
     APAKNPDMWT QNLFSTMARL ARPGGTLATF TSAGFVRRGL QEAGFTMQKR KGFGRKREML
     CGVMAHALTF PSPTPWFTRS GSAKRDVAII GGGIASALLS LALLRRGWQV TLYCSDEQPA
     QGASGNRQGA LYPLLSKHDA AINLFFPSAF TFARRLYDAL PVTFDHDWCG VTQLGWDEKS
     QHKIDQMLSL ALPDALAVAV DPDQAQQETG VATHCRGITY PAGGWLCPAQ LTAALLALAA
     TQGLRRHYTH TLTALSRQAT GWQLQFAEGK AVEHEVVVLA NGHQINHVDQ TRPLPVYSVA
     GQVSHIPTTP ALSALRQVLC YDGYLTPQNP ATHQHCIGAS YHRGSEETAY REDDQQQNRQ
     RLIDCFPDAA WAKEVDISEK AARCGVRCAT RDHLPMVGNV PDYDATLAQY AALARQKDAA
     ERAPVYPDLF MLGALGSRGL CSAPLCAEIL AAQMSEEPIP MDADTLAALN PNRLWVRKLL
     KGKAVK