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MNMC_SHIDS
ID   MNMC_SHIDS              Reviewed;         668 AA.
AC   Q32DL2;
DT   02-SEP-2008, integrated into UniProtKB/Swiss-Prot.
DT   02-SEP-2008, sequence version 2.
DT   03-AUG-2022, entry version 84.
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=SDY_2523;
OS   Shigella dysenteriae serotype 1 (strain Sd197).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Shigella.
OX   NCBI_TaxID=300267;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Sd197;
RX   PubMed=16275786; DOI=10.1093/nar/gki954;
RA   Yang F., Yang J., Zhang X., Chen L., Jiang Y., Yan Y., Tang X., Wang J.,
RA   Xiong Z., Dong J., Xue Y., Zhu Y., Xu X., Sun L., Chen S., Nie H., Peng J.,
RA   Xu J., Wang Y., Yuan Z., Wen Y., Yao Z., Shen Y., Qiang B., Hou Y., Yu J.,
RA   Jin Q.;
RT   "Genome dynamics and diversity of Shigella species, the etiologic agents of
RT   bacillary dysentery.";
RL   Nucleic Acids Res. 33:6445-6458(2005).
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=ABB62593.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; CP000034; ABB62593.1; ALT_INIT; Genomic_DNA.
DR   RefSeq; WP_000683778.1; NC_007606.1.
DR   RefSeq; YP_404084.2; NC_007606.1.
DR   AlphaFoldDB; Q32DL2; -.
DR   SMR; Q32DL2; -.
DR   STRING; 300267.SDY_2523; -.
DR   EnsemblBacteria; ABB62593; ABB62593; SDY_2523.
DR   KEGG; sdy:SDY_2523; -.
DR   PATRIC; fig|300267.13.peg.3038; -.
DR   HOGENOM; CLU_022427_1_0_6; -.
DR   Proteomes; UP000002716; 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..668
FT                   /note="tRNA 5-methylaminomethyl-2-thiouridine biosynthesis
FT                   bifunctional protein MnmC"
FT                   /id="PRO_0000348041"
FT   REGION          1..245
FT                   /note="tRNA (mnm(5)s(2)U34)-methyltransferase"
FT   REGION          270..668
FT                   /note="FAD-dependent cmnm(5)s(2)U34 oxidoreductase"
SQ   SEQUENCE   668 AA;  74778 MW;  D58BF7D40912AF34 CRC64;
     MKHYSIQPAN LEFNAEGTPV SRDFDDVYFS NDNGLEETRY VFLGGNQLEA RFPEYPHPLF
     VVAESGFGTG LNFLTLWQAF DQFREAHPQA QLQRLHFISF EKFPLTRSDL VLAHQHWPEL
     APWAEQLQAQ WPMPLPGCHR LLLDEGRVTL DLWFGDINEL TSQLDDSLNQ KVDAWFLDGF
     APAKNPDMWT QNLFNAMARL ARPSGTLATF TSAGFVRRGL QDAGFTMQKR KGFGRKREML
     CGVMEQTLPL PCSTPWFNRT GSSKREVAII GGGIASALLS LALLRRSWQV TLYCADEAPA
     LGASGNRQGA LYPLLSKHDE ALNRFFSNAF TFARRFYDQL PVKFDHDWCG VTQLGWDEKS
     QHKIAQMLSM DLPEELAVAV EANAVEQITG VATNCSGITY PQGGWLCPAE LTRNVLELAQ
     QQGLQIYYQY QLQDLSRKDD CWLLNFAEDQ QATHSVVVLA NGHQISRFSQ TSSLPVYSVA
     GQVSHIPTTP ELAKLKQVLC YDGYLTPQNP ANQHHCIGAS YHRGSEDTAY SDEDQQQNRQ
     RLIDCFPQAQ WAKEVDISEK EARCGVRCAT RDHLPMVGNV PDYEATLVEY ASLAEQKDKA
     VSAPVYDDLF MLDALGSRGL CSAPLCAEIL AAQMSEEPIP MDASTLAALN PNRLWVRKLL
     KGKAVKAG
 
 
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